Home / 5,251.62-7,877.43-1,355.72

Finding the Fourth Proportional to 5,251.62, 7,877.43 and 1,355.72

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Solution

The fourth proportional to 5,251.62, 7,877.43 and 1,355.72 is: 2,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.62 : 7,877.43 = 1,355.72 : x
  2. Step 2: Convert to fraction form
    5,251.62/7,877.43 = 1,355.72/x
  3. Step 3: Cross multiply
    5,251.62x = 7,877.43 × 1,355.72
  4. Step 4: Simplify right side
    5,251.62x = 10,679,582.62
  5. Step 5: Solve for x
    x = 10,679,582.62/5,251.62
  6. Step 6: Final answer
    x = 2,033.58

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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.