Home / 5,077.78-7,616.61-2,613.28

Finding the Fourth Proportional to 5,077.78, 7,616.61 and 2,613.28

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Solution

The fourth proportional to 5,077.78, 7,616.61 and 2,613.28 is: 3,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.78 : 7,616.61 = 2,613.28 : x
  2. Step 2: Convert to fraction form
    5,077.78/7,616.61 = 2,613.28/x
  3. Step 3: Cross multiply
    5,077.78x = 7,616.61 × 2,613.28
  4. Step 4: Simplify right side
    5,077.78x = 19,904,334.58
  5. Step 5: Solve for x
    x = 19,904,334.58/5,077.78
  6. Step 6: Final answer
    x = 3,919.89

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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.