Home / 3,920.12-5,876.13-2,943.26

Finding the Fourth Proportional to 3,920.12, 5,876.13 and 2,943.26

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Solution

The fourth proportional to 3,920.12, 5,876.13 and 2,943.26 is: 4,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.12 : 5,876.13 = 2,943.26 : x
  2. Step 2: Convert to fraction form
    3,920.12/5,876.13 = 2,943.26/x
  3. Step 3: Cross multiply
    3,920.12x = 5,876.13 × 2,943.26
  4. Step 4: Simplify right side
    3,920.12x = 17,294,978.38
  5. Step 5: Solve for x
    x = 17,294,978.38/3,920.12
  6. Step 6: Final answer
    x = 4,411.85

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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.