Home / 3,689.57-5,531.58-2,228.38

Finding the Fourth Proportional to 3,689.57, 5,531.58 and 2,228.38

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Solution

The fourth proportional to 3,689.57, 5,531.58 and 2,228.38 is: 3,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.57 : 5,531.58 = 2,228.38 : x
  2. Step 2: Convert to fraction form
    3,689.57/5,531.58 = 2,228.38/x
  3. Step 3: Cross multiply
    3,689.57x = 5,531.58 × 2,228.38
  4. Step 4: Simplify right side
    3,689.57x = 12,326,462.24
  5. Step 5: Solve for x
    x = 12,326,462.24/3,689.57
  6. Step 6: Final answer
    x = 3,340.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.