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Finding the Fourth Proportional to 7,168.59, 9,897.66 and 5,280.48

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Solution

The fourth proportional to 7,168.59, 9,897.66 and 5,280.48 is: 7,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.59 : 9,897.66 = 5,280.48 : x
  2. Step 2: Convert to fraction form
    7,168.59/9,897.66 = 5,280.48/x
  3. Step 3: Cross multiply
    7,168.59x = 9,897.66 × 5,280.48
  4. Step 4: Simplify right side
    7,168.59x = 52,264,395.68
  5. Step 5: Solve for x
    x = 52,264,395.68/7,168.59
  6. Step 6: Final answer
    x = 7,290.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.