Home / 7,374.78-11,052.29-2,690.38

Finding the Fourth Proportional to 7,374.78, 11,052.29 and 2,690.38

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Solution

The fourth proportional to 7,374.78, 11,052.29 and 2,690.38 is: 4,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.78 : 11,052.29 = 2,690.38 : x
  2. Step 2: Convert to fraction form
    7,374.78/11,052.29 = 2,690.38/x
  3. Step 3: Cross multiply
    7,374.78x = 11,052.29 × 2,690.38
  4. Step 4: Simplify right side
    7,374.78x = 29,734,839.07
  5. Step 5: Solve for x
    x = 29,734,839.07/7,374.78
  6. Step 6: Final answer
    x = 4,031.96

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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.