Home / 5,246.18-7,872.31-1,959.15

Finding the Fourth Proportional to 5,246.18, 7,872.31 and 1,959.15

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Solution

The fourth proportional to 5,246.18, 7,872.31 and 1,959.15 is: 2,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.18 : 7,872.31 = 1,959.15 : x
  2. Step 2: Convert to fraction form
    5,246.18/7,872.31 = 1,959.15/x
  3. Step 3: Cross multiply
    5,246.18x = 7,872.31 × 1,959.15
  4. Step 4: Simplify right side
    5,246.18x = 15,423,036.14
  5. Step 5: Solve for x
    x = 15,423,036.14/5,246.18
  6. Step 6: Final answer
    x = 2,939.86

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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.