Home / 1,648.60-2,275.08-949.97

Finding the Fourth Proportional to 1,648.60, 2,275.08 and 949.97

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Solution

The fourth proportional to 1,648.60, 2,275.08 and 949.97 is: 1,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.60 : 2,275.08 = 949.97 : x
  2. Step 2: Convert to fraction form
    1,648.60/2,275.08 = 949.97/x
  3. Step 3: Cross multiply
    1,648.60x = 2,275.08 × 949.97
  4. Step 4: Simplify right side
    1,648.60x = 2,161,263.44
  5. Step 5: Solve for x
    x = 2,161,263.44/1,648.60
  6. Step 6: Final answer
    x = 1,310.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.