Home / 2,879.60-4,298.50-2,666

Finding the Fourth Proportional to 2,879.60, 4,298.50 and 2,666

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Solution

The fourth proportional to 2,879.60, 4,298.50 and 2,666 is: 3,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.60 : 4,298.50 = 2,666 : x
  2. Step 2: Convert to fraction form
    2,879.60/4,298.50 = 2,666/x
  3. Step 3: Cross multiply
    2,879.60x = 4,298.50 × 2,666
  4. Step 4: Simplify right side
    2,879.60x = 11,459,801
  5. Step 5: Solve for x
    x = 11,459,801/2,879.60
  6. Step 6: Final answer
    x = 3,979.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.