Home / 4,689.28-6,471.66-3,117.88

Finding the Fourth Proportional to 4,689.28, 6,471.66 and 3,117.88

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Solution

The fourth proportional to 4,689.28, 6,471.66 and 3,117.88 is: 4,302.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.28 : 6,471.66 = 3,117.88 : x
  2. Step 2: Convert to fraction form
    4,689.28/6,471.66 = 3,117.88/x
  3. Step 3: Cross multiply
    4,689.28x = 6,471.66 × 3,117.88
  4. Step 4: Simplify right side
    4,689.28x = 20,177,859.28
  5. Step 5: Solve for x
    x = 20,177,859.28/4,689.28
  6. Step 6: Final answer
    x = 4,302.98

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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.