Home / 4,256.18-5,871.86-3,139.76

Finding the Fourth Proportional to 4,256.18, 5,871.86 and 3,139.76

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Solution

The fourth proportional to 4,256.18, 5,871.86 and 3,139.76 is: 4,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.18 : 5,871.86 = 3,139.76 : x
  2. Step 2: Convert to fraction form
    4,256.18/5,871.86 = 3,139.76/x
  3. Step 3: Cross multiply
    4,256.18x = 5,871.86 × 3,139.76
  4. Step 4: Simplify right side
    4,256.18x = 18,436,231.15
  5. Step 5: Solve for x
    x = 18,436,231.15/4,256.18
  6. Step 6: Final answer
    x = 4,331.64

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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.