Home / 4,139.20-5,711.45-2,370.46

Finding the Fourth Proportional to 4,139.20, 5,711.45 and 2,370.46

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Solution

The fourth proportional to 4,139.20, 5,711.45 and 2,370.46 is: 3,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.20 : 5,711.45 = 2,370.46 : x
  2. Step 2: Convert to fraction form
    4,139.20/5,711.45 = 2,370.46/x
  3. Step 3: Cross multiply
    4,139.20x = 5,711.45 × 2,370.46
  4. Step 4: Simplify right side
    4,139.20x = 13,538,763.77
  5. Step 5: Solve for x
    x = 13,538,763.77/4,139.20
  6. Step 6: Final answer
    x = 3,270.86

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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.