Home / 4,279.31-6,419.68-1,358.32

Finding the Fourth Proportional to 4,279.31, 6,419.68 and 1,358.32

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Solution

The fourth proportional to 4,279.31, 6,419.68 and 1,358.32 is: 2,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.31 : 6,419.68 = 1,358.32 : x
  2. Step 2: Convert to fraction form
    4,279.31/6,419.68 = 1,358.32/x
  3. Step 3: Cross multiply
    4,279.31x = 6,419.68 × 1,358.32
  4. Step 4: Simplify right side
    4,279.31x = 8,719,956.90
  5. Step 5: Solve for x
    x = 8,719,956.90/4,279.31
  6. Step 6: Final answer
    x = 2,037.70

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1.5x scale

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.