Home / 4,142.08-5,716.16-2,279.04

Finding the Fourth Proportional to 4,142.08, 5,716.16 and 2,279.04

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Solution

The fourth proportional to 4,142.08, 5,716.16 and 2,279.04 is: 3,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.08 : 5,716.16 = 2,279.04 : x
  2. Step 2: Convert to fraction form
    4,142.08/5,716.16 = 2,279.04/x
  3. Step 3: Cross multiply
    4,142.08x = 5,716.16 × 2,279.04
  4. Step 4: Simplify right side
    4,142.08x = 13,027,357.29
  5. Step 5: Solve for x
    x = 13,027,357.29/4,142.08
  6. Step 6: Final answer
    x = 3,145.12

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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.