Home / 3,420.42-4,721.34-2,425.92

Finding the Fourth Proportional to 3,420.42, 4,721.34 and 2,425.92

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Solution

The fourth proportional to 3,420.42, 4,721.34 and 2,425.92 is: 3,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.42 : 4,721.34 = 2,425.92 : x
  2. Step 2: Convert to fraction form
    3,420.42/4,721.34 = 2,425.92/x
  3. Step 3: Cross multiply
    3,420.42x = 4,721.34 × 2,425.92
  4. Step 4: Simplify right side
    3,420.42x = 11,453,593.13
  5. Step 5: Solve for x
    x = 11,453,593.13/3,420.42
  6. Step 6: Final answer
    x = 3,348.59

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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.