Home / 4,142.76-5,717.04-2,279.76

Finding the Fourth Proportional to 4,142.76, 5,717.04 and 2,279.76

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Solution

The fourth proportional to 4,142.76, 5,717.04 and 2,279.76 is: 3,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.76 : 5,717.04 = 2,279.76 : x
  2. Step 2: Convert to fraction form
    4,142.76/5,717.04 = 2,279.76/x
  3. Step 3: Cross multiply
    4,142.76x = 5,717.04 × 2,279.76
  4. Step 4: Simplify right side
    4,142.76x = 13,033,479.11
  5. Step 5: Solve for x
    x = 13,033,479.11/4,142.76
  6. Step 6: Final answer
    x = 3,146.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.