Home / 3,390.13-4,680.55-2,327.55

Finding the Fourth Proportional to 3,390.13, 4,680.55 and 2,327.55

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Solution

The fourth proportional to 3,390.13, 4,680.55 and 2,327.55 is: 3,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.13 : 4,680.55 = 2,327.55 : x
  2. Step 2: Convert to fraction form
    3,390.13/4,680.55 = 2,327.55/x
  3. Step 3: Cross multiply
    3,390.13x = 4,680.55 × 2,327.55
  4. Step 4: Simplify right side
    3,390.13x = 10,894,217.06
  5. Step 5: Solve for x
    x = 10,894,217.06/3,390.13
  6. Step 6: Final answer
    x = 3,213.51

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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.