Home / 4,172.12-5,726.85-3,689.44

Finding the Fourth Proportional to 4,172.12, 5,726.85 and 3,689.44

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Solution

The fourth proportional to 4,172.12, 5,726.85 and 3,689.44 is: 5,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.12 : 5,726.85 = 3,689.44 : x
  2. Step 2: Convert to fraction form
    4,172.12/5,726.85 = 3,689.44/x
  3. Step 3: Cross multiply
    4,172.12x = 5,726.85 × 3,689.44
  4. Step 4: Simplify right side
    4,172.12x = 21,128,890.46
  5. Step 5: Solve for x
    x = 21,128,890.46/4,172.12
  6. Step 6: Final answer
    x = 5,064.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.