Home / 5,146.65-7,719.90-1,251.06

Finding the Fourth Proportional to 5,146.65, 7,719.90 and 1,251.06

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Solution

The fourth proportional to 5,146.65, 7,719.90 and 1,251.06 is: 1,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.65 : 7,719.90 = 1,251.06 : x
  2. Step 2: Convert to fraction form
    5,146.65/7,719.90 = 1,251.06/x
  3. Step 3: Cross multiply
    5,146.65x = 7,719.90 × 1,251.06
  4. Step 4: Simplify right side
    5,146.65x = 9,658,058.09
  5. Step 5: Solve for x
    x = 9,658,058.09/5,146.65
  6. Step 6: Final answer
    x = 1,876.57

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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.