Home / 4,187.36-6,279.88-1,265.76

Finding the Fourth Proportional to 4,187.36, 6,279.88 and 1,265.76

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Solution

The fourth proportional to 4,187.36, 6,279.88 and 1,265.76 is: 1,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.36 : 6,279.88 = 1,265.76 : x
  2. Step 2: Convert to fraction form
    4,187.36/6,279.88 = 1,265.76/x
  3. Step 3: Cross multiply
    4,187.36x = 6,279.88 × 1,265.76
  4. Step 4: Simplify right side
    4,187.36x = 7,948,820.91
  5. Step 5: Solve for x
    x = 7,948,820.91/4,187.36
  6. Step 6: Final answer
    x = 1,898.29

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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.