Home / 3,320.96-4,979.76-1,859.72

Finding the Fourth Proportional to 3,320.96, 4,979.76 and 1,859.72

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Solution

The fourth proportional to 3,320.96, 4,979.76 and 1,859.72 is: 2,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.96 : 4,979.76 = 1,859.72 : x
  2. Step 2: Convert to fraction form
    3,320.96/4,979.76 = 1,859.72/x
  3. Step 3: Cross multiply
    3,320.96x = 4,979.76 × 1,859.72
  4. Step 4: Simplify right side
    3,320.96x = 9,260,959.27
  5. Step 5: Solve for x
    x = 9,260,959.27/3,320.96
  6. Step 6: Final answer
    x = 2,788.64

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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.