Home / 2,099.60-3,149.40-1,062.80

Finding the Fourth Proportional to 2,099.60, 3,149.40 and 1,062.80

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Solution

The fourth proportional to 2,099.60, 3,149.40 and 1,062.80 is: 1,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.60 : 3,149.40 = 1,062.80 : x
  2. Step 2: Convert to fraction form
    2,099.60/3,149.40 = 1,062.80/x
  3. Step 3: Cross multiply
    2,099.60x = 3,149.40 × 1,062.80
  4. Step 4: Simplify right side
    2,099.60x = 3,347,182.32
  5. Step 5: Solve for x
    x = 3,347,182.32/2,099.60
  6. Step 6: Final answer
    x = 1,594.20

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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.