Home / 3,113.20-4,296.06-1,715.92

Finding the Fourth Proportional to 3,113.20, 4,296.06 and 1,715.92

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Solution

The fourth proportional to 3,113.20, 4,296.06 and 1,715.92 is: 2,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.20 : 4,296.06 = 1,715.92 : x
  2. Step 2: Convert to fraction form
    3,113.20/4,296.06 = 1,715.92/x
  3. Step 3: Cross multiply
    3,113.20x = 4,296.06 × 1,715.92
  4. Step 4: Simplify right side
    3,113.20x = 7,371,695.28
  5. Step 5: Solve for x
    x = 7,371,695.28/3,113.20
  6. Step 6: Final answer
    x = 2,367.88

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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.