Home / 3,076.02-4,613.12-1,127.78

Finding the Fourth Proportional to 3,076.02, 4,613.12 and 1,127.78

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Solution

The fourth proportional to 3,076.02, 4,613.12 and 1,127.78 is: 1,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.02 : 4,613.12 = 1,127.78 : x
  2. Step 2: Convert to fraction form
    3,076.02/4,613.12 = 1,127.78/x
  3. Step 3: Cross multiply
    3,076.02x = 4,613.12 × 1,127.78
  4. Step 4: Simplify right side
    3,076.02x = 5,202,584.47
  5. Step 5: Solve for x
    x = 5,202,584.47/3,076.02
  6. Step 6: Final answer
    x = 1,691.34

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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.