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Finding the Fourth Proportional to 7,237.71, 9,987.24 and 4,254.48

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Solution

The fourth proportional to 7,237.71, 9,987.24 and 4,254.48 is: 5,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.71 : 9,987.24 = 4,254.48 : x
  2. Step 2: Convert to fraction form
    7,237.71/9,987.24 = 4,254.48/x
  3. Step 3: Cross multiply
    7,237.71x = 9,987.24 × 4,254.48
  4. Step 4: Simplify right side
    7,237.71x = 42,490,512.84
  5. Step 5: Solve for x
    x = 42,490,512.84/7,237.71
  6. Step 6: Final answer
    x = 5,870.71

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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.