Home / 5,254.72-7,876.60-1,966.38

Finding the Fourth Proportional to 5,254.72, 7,876.60 and 1,966.38

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Solution

The fourth proportional to 5,254.72, 7,876.60 and 1,966.38 is: 2,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.72 : 7,876.60 = 1,966.38 : x
  2. Step 2: Convert to fraction form
    5,254.72/7,876.60 = 1,966.38/x
  3. Step 3: Cross multiply
    5,254.72x = 7,876.60 × 1,966.38
  4. Step 4: Simplify right side
    5,254.72x = 15,488,388.71
  5. Step 5: Solve for x
    x = 15,488,388.71/5,254.72
  6. Step 6: Final answer
    x = 2,947.52

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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.