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Finding the Fourth Proportional to 7,174.88, 9,897.84 and 4,657.40

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Solution

The fourth proportional to 7,174.88, 9,897.84 and 4,657.40 is: 6,424.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.88 : 9,897.84 = 4,657.40 : x
  2. Step 2: Convert to fraction form
    7,174.88/9,897.84 = 4,657.40/x
  3. Step 3: Cross multiply
    7,174.88x = 9,897.84 × 4,657.40
  4. Step 4: Simplify right side
    7,174.88x = 46,098,200.02
  5. Step 5: Solve for x
    x = 46,098,200.02/7,174.88
  6. Step 6: Final answer
    x = 6,424.94

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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.