Home / 3,649.26-5,036.11-2,158.46

Finding the Fourth Proportional to 3,649.26, 5,036.11 and 2,158.46

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Solution

The fourth proportional to 3,649.26, 5,036.11 and 2,158.46 is: 2,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.26 : 5,036.11 = 2,158.46 : x
  2. Step 2: Convert to fraction form
    3,649.26/5,036.11 = 2,158.46/x
  3. Step 3: Cross multiply
    3,649.26x = 5,036.11 × 2,158.46
  4. Step 4: Simplify right side
    3,649.26x = 10,870,230.30
  5. Step 5: Solve for x
    x = 10,870,230.30/3,649.26
  6. Step 6: Final answer
    x = 2,978.75

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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.