Home / 4,115.38-5,679.16-2,347.02

Finding the Fourth Proportional to 4,115.38, 5,679.16 and 2,347.02

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Solution

The fourth proportional to 4,115.38, 5,679.16 and 2,347.02 is: 3,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.38 : 5,679.16 = 2,347.02 : x
  2. Step 2: Convert to fraction form
    4,115.38/5,679.16 = 2,347.02/x
  3. Step 3: Cross multiply
    4,115.38x = 5,679.16 × 2,347.02
  4. Step 4: Simplify right side
    4,115.38x = 13,329,102.10
  5. Step 5: Solve for x
    x = 13,329,102.10/4,115.38
  6. Step 6: Final answer
    x = 3,238.85

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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.