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Finding the Fourth Proportional to 5,280.95, 7,918.25 and 3,635.71

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Solution

The fourth proportional to 5,280.95, 7,918.25 and 3,635.71 is: 5,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.95 : 7,918.25 = 3,635.71 : x
  2. Step 2: Convert to fraction form
    5,280.95/7,918.25 = 3,635.71/x
  3. Step 3: Cross multiply
    5,280.95x = 7,918.25 × 3,635.71
  4. Step 4: Simplify right side
    5,280.95x = 28,788,422.73
  5. Step 5: Solve for x
    x = 28,788,422.73/5,280.95
  6. Step 6: Final answer
    x = 5,451.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.