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Finding the Fourth Proportional to 3,099.65, 4,276.13 and 1,840.76

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Solution

The fourth proportional to 3,099.65, 4,276.13 and 1,840.76 is: 2,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.65 : 4,276.13 = 1,840.76 : x
  2. Step 2: Convert to fraction form
    3,099.65/4,276.13 = 1,840.76/x
  3. Step 3: Cross multiply
    3,099.65x = 4,276.13 × 1,840.76
  4. Step 4: Simplify right side
    3,099.65x = 7,871,330.55
  5. Step 5: Solve for x
    x = 7,871,330.55/3,099.65
  6. Step 6: Final answer
    x = 2,539.42

Related Problems

Find fourth proportional to 1,549.83, 2,138.06 and 920.38
Half scale
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Double scale
Find fourth proportional to 3,100.65, 4,277.50 and 1,841.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.