Home / 2,920.36-4,382.46-1,380.52

Finding the Fourth Proportional to 2,920.36, 4,382.46 and 1,380.52

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Solution

The fourth proportional to 2,920.36, 4,382.46 and 1,380.52 is: 2,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.36 : 4,382.46 = 1,380.52 : x
  2. Step 2: Convert to fraction form
    2,920.36/4,382.46 = 1,380.52/x
  3. Step 3: Cross multiply
    2,920.36x = 4,382.46 × 1,380.52
  4. Step 4: Simplify right side
    2,920.36x = 6,050,073.68
  5. Step 5: Solve for x
    x = 6,050,073.68/2,920.36
  6. Step 6: Final answer
    x = 2,071.69

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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.