Home / 3,117.61-4,672.29-1,267.70

Finding the Fourth Proportional to 3,117.61, 4,672.29 and 1,267.70

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Solution

The fourth proportional to 3,117.61, 4,672.29 and 1,267.70 is: 1,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.61 : 4,672.29 = 1,267.70 : x
  2. Step 2: Convert to fraction form
    3,117.61/4,672.29 = 1,267.70/x
  3. Step 3: Cross multiply
    3,117.61x = 4,672.29 × 1,267.70
  4. Step 4: Simplify right side
    3,117.61x = 5,923,062.03
  5. Step 5: Solve for x
    x = 5,923,062.03/3,117.61
  6. Step 6: Final answer
    x = 1,899.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.