Home / 5,380.43-7,427.52-3,590.90

Finding the Fourth Proportional to 5,380.43, 7,427.52 and 3,590.90

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Solution

The fourth proportional to 5,380.43, 7,427.52 and 3,590.90 is: 4,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.43 : 7,427.52 = 3,590.90 : x
  2. Step 2: Convert to fraction form
    5,380.43/7,427.52 = 3,590.90/x
  3. Step 3: Cross multiply
    5,380.43x = 7,427.52 × 3,590.90
  4. Step 4: Simplify right side
    5,380.43x = 26,671,481.57
  5. Step 5: Solve for x
    x = 26,671,481.57/5,380.43
  6. Step 6: Final answer
    x = 4,957.13

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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.