Home / 3,687.49-5,088.45-2,195.74

Finding the Fourth Proportional to 3,687.49, 5,088.45 and 2,195.74

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Solution

The fourth proportional to 3,687.49, 5,088.45 and 2,195.74 is: 3,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.49 : 5,088.45 = 2,195.74 : x
  2. Step 2: Convert to fraction form
    3,687.49/5,088.45 = 2,195.74/x
  3. Step 3: Cross multiply
    3,687.49x = 5,088.45 × 2,195.74
  4. Step 4: Simplify right side
    3,687.49x = 11,172,913.20
  5. Step 5: Solve for x
    x = 11,172,913.20/3,687.49
  6. Step 6: Final answer
    x = 3,029.95

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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.