Home / 2,640.34-3,635.62-2,306.83

Finding the Fourth Proportional to 2,640.34, 3,635.62 and 2,306.83

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Solution

The fourth proportional to 2,640.34, 3,635.62 and 2,306.83 is: 3,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.34 : 3,635.62 = 2,306.83 : x
  2. Step 2: Convert to fraction form
    2,640.34/3,635.62 = 2,306.83/x
  3. Step 3: Cross multiply
    2,640.34x = 3,635.62 × 2,306.83
  4. Step 4: Simplify right side
    2,640.34x = 8,386,757.28
  5. Step 5: Solve for x
    x = 8,386,757.28/2,640.34
  6. Step 6: Final answer
    x = 3,176.39

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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.