Home / 3,426.60-5,139.36-1,234.20

Finding the Fourth Proportional to 3,426.60, 5,139.36 and 1,234.20

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Solution

The fourth proportional to 3,426.60, 5,139.36 and 1,234.20 is: 1,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.60 : 5,139.36 = 1,234.20 : x
  2. Step 2: Convert to fraction form
    3,426.60/5,139.36 = 1,234.20/x
  3. Step 3: Cross multiply
    3,426.60x = 5,139.36 × 1,234.20
  4. Step 4: Simplify right side
    3,426.60x = 6,342,998.11
  5. Step 5: Solve for x
    x = 6,342,998.11/3,426.60
  6. Step 6: Final answer
    x = 1,851.11

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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.