Home / 5,321.22-7,979.59-2,547.24

Finding the Fourth Proportional to 5,321.22, 7,979.59 and 2,547.24

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Solution

The fourth proportional to 5,321.22, 7,979.59 and 2,547.24 is: 3,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.22 : 7,979.59 = 2,547.24 : x
  2. Step 2: Convert to fraction form
    5,321.22/7,979.59 = 2,547.24/x
  3. Step 3: Cross multiply
    5,321.22x = 7,979.59 × 2,547.24
  4. Step 4: Simplify right side
    5,321.22x = 20,325,930.83
  5. Step 5: Solve for x
    x = 20,325,930.83/5,321.22
  6. Step 6: Final answer
    x = 3,819.79

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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.