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Finding the Fourth Proportional to 1,487.68, 2,226.34 and 902.32

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Solution

The fourth proportional to 1,487.68, 2,226.34 and 902.32 is: 1,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.68 : 2,226.34 = 902.32 : x
  2. Step 2: Convert to fraction form
    1,487.68/2,226.34 = 902.32/x
  3. Step 3: Cross multiply
    1,487.68x = 2,226.34 × 902.32
  4. Step 4: Simplify right side
    1,487.68x = 2,008,871.11
  5. Step 5: Solve for x
    x = 2,008,871.11/1,487.68
  6. Step 6: Final answer
    x = 1,350.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.