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Finding the Fourth Proportional to 7,342.30, 10,988.40 and 4,672.54

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Solution

The fourth proportional to 7,342.30, 10,988.40 and 4,672.54 is: 6,992.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.30 : 10,988.40 = 4,672.54 : x
  2. Step 2: Convert to fraction form
    7,342.30/10,988.40 = 4,672.54/x
  3. Step 3: Cross multiply
    7,342.30x = 10,988.40 × 4,672.54
  4. Step 4: Simplify right side
    7,342.30x = 51,343,738.54
  5. Step 5: Solve for x
    x = 51,343,738.54/7,342.30
  6. Step 6: Final answer
    x = 6,992.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.