Home / 3,131.06-4,318.18-2,068.87

Finding the Fourth Proportional to 3,131.06, 4,318.18 and 2,068.87

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Solution

The fourth proportional to 3,131.06, 4,318.18 and 2,068.87 is: 2,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.06 : 4,318.18 = 2,068.87 : x
  2. Step 2: Convert to fraction form
    3,131.06/4,318.18 = 2,068.87/x
  3. Step 3: Cross multiply
    3,131.06x = 4,318.18 × 2,068.87
  4. Step 4: Simplify right side
    3,131.06x = 8,933,753.06
  5. Step 5: Solve for x
    x = 8,933,753.06/3,131.06
  6. Step 6: Final answer
    x = 2,853.27

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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.