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Finding the Fourth Proportional to 7,287.03, 10,929.33 and 2,903.31

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Solution

The fourth proportional to 7,287.03, 10,929.33 and 2,903.31 is: 4,354.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.03 : 10,929.33 = 2,903.31 : x
  2. Step 2: Convert to fraction form
    7,287.03/10,929.33 = 2,903.31/x
  3. Step 3: Cross multiply
    7,287.03x = 10,929.33 × 2,903.31
  4. Step 4: Simplify right side
    7,287.03x = 31,731,233.08
  5. Step 5: Solve for x
    x = 31,731,233.08/7,287.03
  6. Step 6: Final answer
    x = 4,354.48

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Why These Related Problems?

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