Home / 3,752.96-5,627.28-1,155.20

Finding the Fourth Proportional to 3,752.96, 5,627.28 and 1,155.20

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Solution

The fourth proportional to 3,752.96, 5,627.28 and 1,155.20 is: 1,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.96 : 5,627.28 = 1,155.20 : x
  2. Step 2: Convert to fraction form
    3,752.96/5,627.28 = 1,155.20/x
  3. Step 3: Cross multiply
    3,752.96x = 5,627.28 × 1,155.20
  4. Step 4: Simplify right side
    3,752.96x = 6,500,633.86
  5. Step 5: Solve for x
    x = 6,500,633.86/3,752.96
  6. Step 6: Final answer
    x = 1,732.14

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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.