Home / 3,124.26-4,305.78-2,176.92

Finding the Fourth Proportional to 3,124.26, 4,305.78 and 2,176.92

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Solution

The fourth proportional to 3,124.26, 4,305.78 and 2,176.92 is: 3,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.26 : 4,305.78 = 2,176.92 : x
  2. Step 2: Convert to fraction form
    3,124.26/4,305.78 = 2,176.92/x
  3. Step 3: Cross multiply
    3,124.26x = 4,305.78 × 2,176.92
  4. Step 4: Simplify right side
    3,124.26x = 9,373,338.60
  5. Step 5: Solve for x
    x = 9,373,338.60/3,124.26
  6. Step 6: Final answer
    x = 3,000.18

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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.