Home / 3,099.40-4,276.90-1,840.36

Finding the Fourth Proportional to 3,099.40, 4,276.90 and 1,840.36

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Solution

The fourth proportional to 3,099.40, 4,276.90 and 1,840.36 is: 2,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.40 : 4,276.90 = 1,840.36 : x
  2. Step 2: Convert to fraction form
    3,099.40/4,276.90 = 1,840.36/x
  3. Step 3: Cross multiply
    3,099.40x = 4,276.90 × 1,840.36
  4. Step 4: Simplify right side
    3,099.40x = 7,871,035.68
  5. Step 5: Solve for x
    x = 7,871,035.68/3,099.40
  6. Step 6: Final answer
    x = 2,539.54

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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.