Home / 3,689.42-5,089.13-2,253.11

Finding the Fourth Proportional to 3,689.42, 5,089.13 and 2,253.11

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Solution

The fourth proportional to 3,689.42, 5,089.13 and 2,253.11 is: 3,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.42 : 5,089.13 = 2,253.11 : x
  2. Step 2: Convert to fraction form
    3,689.42/5,089.13 = 2,253.11/x
  3. Step 3: Cross multiply
    3,689.42x = 5,089.13 × 2,253.11
  4. Step 4: Simplify right side
    3,689.42x = 11,466,376.78
  5. Step 5: Solve for x
    x = 11,466,376.78/3,689.42
  6. Step 6: Final answer
    x = 3,107.91

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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.