Home / 2,921.50-4,382.20-1,751.82

Finding the Fourth Proportional to 2,921.50, 4,382.20 and 1,751.82

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Solution

The fourth proportional to 2,921.50, 4,382.20 and 1,751.82 is: 2,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.50 : 4,382.20 = 1,751.82 : x
  2. Step 2: Convert to fraction form
    2,921.50/4,382.20 = 1,751.82/x
  3. Step 3: Cross multiply
    2,921.50x = 4,382.20 × 1,751.82
  4. Step 4: Simplify right side
    2,921.50x = 7,676,825.60
  5. Step 5: Solve for x
    x = 7,676,825.60/2,921.50
  6. Step 6: Final answer
    x = 2,627.70

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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.