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Finding the Fourth Proportional to 7,250.52, 10,005.10 and 4,020.42

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Solution

The fourth proportional to 7,250.52, 10,005.10 and 4,020.42 is: 5,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.52 : 10,005.10 = 4,020.42 : x
  2. Step 2: Convert to fraction form
    7,250.52/10,005.10 = 4,020.42/x
  3. Step 3: Cross multiply
    7,250.52x = 10,005.10 × 4,020.42
  4. Step 4: Simplify right side
    7,250.52x = 40,224,704.14
  5. Step 5: Solve for x
    x = 40,224,704.14/7,250.52
  6. Step 6: Final answer
    x = 5,547.84

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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.