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Finding the Fourth Proportional to 6,776.80, 9,352.10 and 3,792.28

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Solution

The fourth proportional to 6,776.80, 9,352.10 and 3,792.28 is: 5,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,776.80 : 9,352.10 = 3,792.28 : x
  2. Step 2: Convert to fraction form
    6,776.80/9,352.10 = 3,792.28/x
  3. Step 3: Cross multiply
    6,776.80x = 9,352.10 × 3,792.28
  4. Step 4: Simplify right side
    6,776.80x = 35,465,781.79
  5. Step 5: Solve for x
    x = 35,465,781.79/6,776.80
  6. Step 6: Final answer
    x = 5,233.41

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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.