Home / 1,487.60-2,228.52-1,154.30

Finding the Fourth Proportional to 1,487.60, 2,228.52 and 1,154.30

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Solution

The fourth proportional to 1,487.60, 2,228.52 and 1,154.30 is: 1,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.60 : 2,228.52 = 1,154.30 : x
  2. Step 2: Convert to fraction form
    1,487.60/2,228.52 = 1,154.30/x
  3. Step 3: Cross multiply
    1,487.60x = 2,228.52 × 1,154.30
  4. Step 4: Simplify right side
    1,487.60x = 2,572,380.64
  5. Step 5: Solve for x
    x = 2,572,380.64/1,487.60
  6. Step 6: Final answer
    x = 1,729.22

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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.