Home / 3,137.08-4,329.96-2,142.76

Finding the Fourth Proportional to 3,137.08, 4,329.96 and 2,142.76

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Solution

The fourth proportional to 3,137.08, 4,329.96 and 2,142.76 is: 2,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.08 : 4,329.96 = 2,142.76 : x
  2. Step 2: Convert to fraction form
    3,137.08/4,329.96 = 2,142.76/x
  3. Step 3: Cross multiply
    3,137.08x = 4,329.96 × 2,142.76
  4. Step 4: Simplify right side
    3,137.08x = 9,278,065.09
  5. Step 5: Solve for x
    x = 9,278,065.09/3,137.08
  6. Step 6: Final answer
    x = 2,957.55

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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.