Home / 3,617.29-4,991.20-2,125.45

Finding the Fourth Proportional to 3,617.29, 4,991.20 and 2,125.45

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Solution

The fourth proportional to 3,617.29, 4,991.20 and 2,125.45 is: 2,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.29 : 4,991.20 = 2,125.45 : x
  2. Step 2: Convert to fraction form
    3,617.29/4,991.20 = 2,125.45/x
  3. Step 3: Cross multiply
    3,617.29x = 4,991.20 × 2,125.45
  4. Step 4: Simplify right side
    3,617.29x = 10,608,558.52
  5. Step 5: Solve for x
    x = 10,608,558.52/3,617.29
  6. Step 6: Final answer
    x = 2,932.73

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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.