Home / 5,537.15-7,640.34-3,179.44

Finding the Fourth Proportional to 5,537.15, 7,640.34 and 3,179.44

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Solution

The fourth proportional to 5,537.15, 7,640.34 and 3,179.44 is: 4,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.15 : 7,640.34 = 3,179.44 : x
  2. Step 2: Convert to fraction form
    5,537.15/7,640.34 = 3,179.44/x
  3. Step 3: Cross multiply
    5,537.15x = 7,640.34 × 3,179.44
  4. Step 4: Simplify right side
    5,537.15x = 24,292,018.12
  5. Step 5: Solve for x
    x = 24,292,018.12/5,537.15
  6. Step 6: Final answer
    x = 4,387.10

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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.