Home / 3,641.40-5,460.38-2,180.20

Finding the Fourth Proportional to 3,641.40, 5,460.38 and 2,180.20

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Solution

The fourth proportional to 3,641.40, 5,460.38 and 2,180.20 is: 3,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.40 : 5,460.38 = 2,180.20 : x
  2. Step 2: Convert to fraction form
    3,641.40/5,460.38 = 2,180.20/x
  3. Step 3: Cross multiply
    3,641.40x = 5,460.38 × 2,180.20
  4. Step 4: Simplify right side
    3,641.40x = 11,904,720.48
  5. Step 5: Solve for x
    x = 11,904,720.48/3,641.40
  6. Step 6: Final answer
    x = 3,269.27

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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.