Home / 2,920.77-4,380.71-1,359.54

Finding the Fourth Proportional to 2,920.77, 4,380.71 and 1,359.54

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Solution

The fourth proportional to 2,920.77, 4,380.71 and 1,359.54 is: 2,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.77 : 4,380.71 = 1,359.54 : x
  2. Step 2: Convert to fraction form
    2,920.77/4,380.71 = 1,359.54/x
  3. Step 3: Cross multiply
    2,920.77x = 4,380.71 × 1,359.54
  4. Step 4: Simplify right side
    2,920.77x = 5,955,743.68
  5. Step 5: Solve for x
    x = 5,955,743.68/2,920.77
  6. Step 6: Final answer
    x = 2,039.10

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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.