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Finding the Fourth Proportional to 3,792.32, 5,689.28 and 1,845.62

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Solution

The fourth proportional to 3,792.32, 5,689.28 and 1,845.62 is: 2,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.32 : 5,689.28 = 1,845.62 : x
  2. Step 2: Convert to fraction form
    3,792.32/5,689.28 = 1,845.62/x
  3. Step 3: Cross multiply
    3,792.32x = 5,689.28 × 1,845.62
  4. Step 4: Simplify right side
    3,792.32x = 10,500,248.95
  5. Step 5: Solve for x
    x = 10,500,248.95/3,792.32
  6. Step 6: Final answer
    x = 2,768.82

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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.