Home / 3,590.22-5,383.78-1,398.43

Finding the Fourth Proportional to 3,590.22, 5,383.78 and 1,398.43

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Solution

The fourth proportional to 3,590.22, 5,383.78 and 1,398.43 is: 2,097.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.22 : 5,383.78 = 1,398.43 : x
  2. Step 2: Convert to fraction form
    3,590.22/5,383.78 = 1,398.43/x
  3. Step 3: Cross multiply
    3,590.22x = 5,383.78 × 1,398.43
  4. Step 4: Simplify right side
    3,590.22x = 7,528,842.70
  5. Step 5: Solve for x
    x = 7,528,842.70/3,590.22
  6. Step 6: Final answer
    x = 2,097.04

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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.