Home / 2,849.60-4,269.36-1,979.84

Finding the Fourth Proportional to 2,849.60, 4,269.36 and 1,979.84

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Solution

The fourth proportional to 2,849.60, 4,269.36 and 1,979.84 is: 2,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.60 : 4,269.36 = 1,979.84 : x
  2. Step 2: Convert to fraction form
    2,849.60/4,269.36 = 1,979.84/x
  3. Step 3: Cross multiply
    2,849.60x = 4,269.36 × 1,979.84
  4. Step 4: Simplify right side
    2,849.60x = 8,452,649.70
  5. Step 5: Solve for x
    x = 8,452,649.70/2,849.60
  6. Step 6: Final answer
    x = 2,966.26

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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.