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Finding the Fourth Proportional to 5,681.88, 7,841.02 and 3,197.88

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Solution

The fourth proportional to 5,681.88, 7,841.02 and 3,197.88 is: 4,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.88 : 7,841.02 = 3,197.88 : x
  2. Step 2: Convert to fraction form
    5,681.88/7,841.02 = 3,197.88/x
  3. Step 3: Cross multiply
    5,681.88x = 7,841.02 × 3,197.88
  4. Step 4: Simplify right side
    5,681.88x = 25,074,641.04
  5. Step 5: Solve for x
    x = 25,074,641.04/5,681.88
  6. Step 6: Final answer
    x = 4,413.09

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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.