Home / 5,029.56-6,938.46-3,139.92

Finding the Fourth Proportional to 5,029.56, 6,938.46 and 3,139.92

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Solution

The fourth proportional to 5,029.56, 6,938.46 and 3,139.92 is: 4,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,029.56 : 6,938.46 = 3,139.92 : x
  2. Step 2: Convert to fraction form
    5,029.56/6,938.46 = 3,139.92/x
  3. Step 3: Cross multiply
    5,029.56x = 6,938.46 × 3,139.92
  4. Step 4: Simplify right side
    5,029.56x = 21,786,209.32
  5. Step 5: Solve for x
    x = 21,786,209.32/5,029.56
  6. Step 6: Final answer
    x = 4,331.63

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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.