Home / 5,131.07-7,076.85-3,714.97

Finding the Fourth Proportional to 5,131.07, 7,076.85 and 3,714.97

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Solution

The fourth proportional to 5,131.07, 7,076.85 and 3,714.97 is: 5,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.07 : 7,076.85 = 3,714.97 : x
  2. Step 2: Convert to fraction form
    5,131.07/7,076.85 = 3,714.97/x
  3. Step 3: Cross multiply
    5,131.07x = 7,076.85 × 3,714.97
  4. Step 4: Simplify right side
    5,131.07x = 26,290,285.44
  5. Step 5: Solve for x
    x = 26,290,285.44/5,131.07
  6. Step 6: Final answer
    x = 5,123.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.