Home / 4,873.20-7,298.76-2,790

Finding the Fourth Proportional to 4,873.20, 7,298.76 and 2,790

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Solution

The fourth proportional to 4,873.20, 7,298.76 and 2,790 is: 4,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,873.20 : 7,298.76 = 2,790 : x
  2. Step 2: Convert to fraction form
    4,873.20/7,298.76 = 2,790/x
  3. Step 3: Cross multiply
    4,873.20x = 7,298.76 × 2,790
  4. Step 4: Simplify right side
    4,873.20x = 20,363,540.40
  5. Step 5: Solve for x
    x = 20,363,540.40/4,873.20
  6. Step 6: Final answer
    x = 4,178.68

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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.