Home / 6,724.61-9,278.45-4,071.96

Finding the Fourth Proportional to 6,724.61, 9,278.45 and 4,071.96

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Solution

The fourth proportional to 6,724.61, 9,278.45 and 4,071.96 is: 5,618.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.61 : 9,278.45 = 4,071.96 : x
  2. Step 2: Convert to fraction form
    6,724.61/9,278.45 = 4,071.96/x
  3. Step 3: Cross multiply
    6,724.61x = 9,278.45 × 4,071.96
  4. Step 4: Simplify right side
    6,724.61x = 37,781,456.90
  5. Step 5: Solve for x
    x = 37,781,456.90/6,724.61
  6. Step 6: Final answer
    x = 5,618.39

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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.