Home / 3,151.98-4,350.15-2,270.70

Finding the Fourth Proportional to 3,151.98, 4,350.15 and 2,270.70

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Solution

The fourth proportional to 3,151.98, 4,350.15 and 2,270.70 is: 3,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.98 : 4,350.15 = 2,270.70 : x
  2. Step 2: Convert to fraction form
    3,151.98/4,350.15 = 2,270.70/x
  3. Step 3: Cross multiply
    3,151.98x = 4,350.15 × 2,270.70
  4. Step 4: Simplify right side
    3,151.98x = 9,877,885.61
  5. Step 5: Solve for x
    x = 9,877,885.61/3,151.98
  6. Step 6: Final answer
    x = 3,133.87

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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.