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Finding the Fourth Proportional to 6,331.78, 8,737.44 and 3,499.18

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Solution

The fourth proportional to 6,331.78, 8,737.44 and 3,499.18 is: 4,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.78 : 8,737.44 = 3,499.18 : x
  2. Step 2: Convert to fraction form
    6,331.78/8,737.44 = 3,499.18/x
  3. Step 3: Cross multiply
    6,331.78x = 8,737.44 × 3,499.18
  4. Step 4: Simplify right side
    6,331.78x = 30,573,875.30
  5. Step 5: Solve for x
    x = 30,573,875.30/6,331.78
  6. Step 6: Final answer
    x = 4,828.64

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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.