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Finding the Fourth Proportional to 6,425.96, 8,867.76 and 4,070.03

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Solution

The fourth proportional to 6,425.96, 8,867.76 and 4,070.03 is: 5,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.96 : 8,867.76 = 4,070.03 : x
  2. Step 2: Convert to fraction form
    6,425.96/8,867.76 = 4,070.03/x
  3. Step 3: Cross multiply
    6,425.96x = 8,867.76 × 4,070.03
  4. Step 4: Simplify right side
    6,425.96x = 36,092,049.23
  5. Step 5: Solve for x
    x = 36,092,049.23/6,425.96
  6. Step 6: Final answer
    x = 5,616.60

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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.