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Finding the Fourth Proportional to 7,210.71, 9,948.45 and 4,023.49

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Solution

The fourth proportional to 7,210.71, 9,948.45 and 4,023.49 is: 5,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.71 : 9,948.45 = 4,023.49 : x
  2. Step 2: Convert to fraction form
    7,210.71/9,948.45 = 4,023.49/x
  3. Step 3: Cross multiply
    7,210.71x = 9,948.45 × 4,023.49
  4. Step 4: Simplify right side
    7,210.71x = 40,027,489.09
  5. Step 5: Solve for x
    x = 40,027,489.09/7,210.71
  6. Step 6: Final answer
    x = 5,551.12

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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.