Home / 2,149.60-3,218.10-1,604.20

Finding the Fourth Proportional to 2,149.60, 3,218.10 and 1,604.20

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Solution

The fourth proportional to 2,149.60, 3,218.10 and 1,604.20 is: 2,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.60 : 3,218.10 = 1,604.20 : x
  2. Step 2: Convert to fraction form
    2,149.60/3,218.10 = 1,604.20/x
  3. Step 3: Cross multiply
    2,149.60x = 3,218.10 × 1,604.20
  4. Step 4: Simplify right side
    2,149.60x = 5,162,476.02
  5. Step 5: Solve for x
    x = 5,162,476.02/2,149.60
  6. Step 6: Final answer
    x = 2,401.60

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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.