Home / 4,279.91-6,419.87-2,959.51

Finding the Fourth Proportional to 4,279.91, 6,419.87 and 2,959.51

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Solution

The fourth proportional to 4,279.91, 6,419.87 and 2,959.51 is: 4,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.91 : 6,419.87 = 2,959.51 : x
  2. Step 2: Convert to fraction form
    4,279.91/6,419.87 = 2,959.51/x
  3. Step 3: Cross multiply
    4,279.91x = 6,419.87 × 2,959.51
  4. Step 4: Simplify right side
    4,279.91x = 18,999,683.97
  5. Step 5: Solve for x
    x = 18,999,683.97/4,279.91
  6. Step 6: Final answer
    x = 4,439.27

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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.