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Finding the Fourth Proportional to 1,800.75, 2,485.05 and 1,014.81

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Solution

The fourth proportional to 1,800.75, 2,485.05 and 1,014.81 is: 1,400.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.75 : 2,485.05 = 1,014.81 : x
  2. Step 2: Convert to fraction form
    1,800.75/2,485.05 = 1,014.81/x
  3. Step 3: Cross multiply
    1,800.75x = 2,485.05 × 1,014.81
  4. Step 4: Simplify right side
    1,800.75x = 2,521,848.52
  5. Step 5: Solve for x
    x = 2,521,848.52/1,800.75
  6. Step 6: Final answer
    x = 1,400.44

Related Problems

Find fourth proportional to 900.38, 1,242.52 and 507.41
Half scale
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Double scale
Find fourth proportional to 1,801.75, 2,486.43 and 1,015.81
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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.