Home / 5,249.16-7,873.92-2,780.64

Finding the Fourth Proportional to 5,249.16, 7,873.92 and 2,780.64

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Solution

The fourth proportional to 5,249.16, 7,873.92 and 2,780.64 is: 4,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.16 : 7,873.92 = 2,780.64 : x
  2. Step 2: Convert to fraction form
    5,249.16/7,873.92 = 2,780.64/x
  3. Step 3: Cross multiply
    5,249.16x = 7,873.92 × 2,780.64
  4. Step 4: Simplify right side
    5,249.16x = 21,894,536.91
  5. Step 5: Solve for x
    x = 21,894,536.91/5,249.16
  6. Step 6: Final answer
    x = 4,171.06

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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.