Home / 3,423.40-5,135.20-2,682.32

Finding the Fourth Proportional to 3,423.40, 5,135.20 and 2,682.32

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Solution

The fourth proportional to 3,423.40, 5,135.20 and 2,682.32 is: 4,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.40 : 5,135.20 = 2,682.32 : x
  2. Step 2: Convert to fraction form
    3,423.40/5,135.20 = 2,682.32/x
  3. Step 3: Cross multiply
    3,423.40x = 5,135.20 × 2,682.32
  4. Step 4: Simplify right side
    3,423.40x = 13,774,217.28
  5. Step 5: Solve for x
    x = 13,774,217.28/3,423.40
  6. Step 6: Final answer
    x = 4,023.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.