Home / 3,480.40-5,220.33-1,631.04

Finding the Fourth Proportional to 3,480.40, 5,220.33 and 1,631.04

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Solution

The fourth proportional to 3,480.40, 5,220.33 and 1,631.04 is: 2,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.40 : 5,220.33 = 1,631.04 : x
  2. Step 2: Convert to fraction form
    3,480.40/5,220.33 = 1,631.04/x
  3. Step 3: Cross multiply
    3,480.40x = 5,220.33 × 1,631.04
  4. Step 4: Simplify right side
    3,480.40x = 8,514,567.04
  5. Step 5: Solve for x
    x = 8,514,567.04/3,480.40
  6. Step 6: Final answer
    x = 2,446.43

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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.