Home / 5,535.38-7,640.43-3,648.35

Finding the Fourth Proportional to 5,535.38, 7,640.43 and 3,648.35

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Solution

The fourth proportional to 5,535.38, 7,640.43 and 3,648.35 is: 5,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.38 : 7,640.43 = 3,648.35 : x
  2. Step 2: Convert to fraction form
    5,535.38/7,640.43 = 3,648.35/x
  3. Step 3: Cross multiply
    5,535.38x = 7,640.43 × 3,648.35
  4. Step 4: Simplify right side
    5,535.38x = 27,874,962.79
  5. Step 5: Solve for x
    x = 27,874,962.79/5,535.38
  6. Step 6: Final answer
    x = 5,035.78

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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.