Home / 2,420.35-3,343.21-2,002.39

Finding the Fourth Proportional to 2,420.35, 3,343.21 and 2,002.39

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Solution

The fourth proportional to 2,420.35, 3,343.21 and 2,002.39 is: 2,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.35 : 3,343.21 = 2,002.39 : x
  2. Step 2: Convert to fraction form
    2,420.35/3,343.21 = 2,002.39/x
  3. Step 3: Cross multiply
    2,420.35x = 3,343.21 × 2,002.39
  4. Step 4: Simplify right side
    2,420.35x = 6,694,396.91
  5. Step 5: Solve for x
    x = 6,694,396.91/2,420.35
  6. Step 6: Final answer
    x = 2,765.88

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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.