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Finding the Fourth Proportional to 6,471.78, 8,932.02 and 3,955.35

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Solution

The fourth proportional to 6,471.78, 8,932.02 and 3,955.35 is: 5,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.78 : 8,932.02 = 3,955.35 : x
  2. Step 2: Convert to fraction form
    6,471.78/8,932.02 = 3,955.35/x
  3. Step 3: Cross multiply
    6,471.78x = 8,932.02 × 3,955.35
  4. Step 4: Simplify right side
    6,471.78x = 35,329,265.31
  5. Step 5: Solve for x
    x = 35,329,265.31/6,471.78
  6. Step 6: Final answer
    x = 5,458.97

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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.