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Finding the Fourth Proportional to 6,280.16, 8,666.10 and 3,447.50

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Solution

The fourth proportional to 6,280.16, 8,666.10 and 3,447.50 is: 4,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.16 : 8,666.10 = 3,447.50 : x
  2. Step 2: Convert to fraction form
    6,280.16/8,666.10 = 3,447.50/x
  3. Step 3: Cross multiply
    6,280.16x = 8,666.10 × 3,447.50
  4. Step 4: Simplify right side
    6,280.16x = 29,876,379.75
  5. Step 5: Solve for x
    x = 29,876,379.75/6,280.16
  6. Step 6: Final answer
    x = 4,757.26

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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.