Home / 1,275.32-1,759.84-943.96

Finding the Fourth Proportional to 1,275.32, 1,759.84 and 943.96

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Solution

The fourth proportional to 1,275.32, 1,759.84 and 943.96 is: 1,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275.32 : 1,759.84 = 943.96 : x
  2. Step 2: Convert to fraction form
    1,275.32/1,759.84 = 943.96/x
  3. Step 3: Cross multiply
    1,275.32x = 1,759.84 × 943.96
  4. Step 4: Simplify right side
    1,275.32x = 1,661,218.57
  5. Step 5: Solve for x
    x = 1,661,218.57/1,275.32
  6. Step 6: Final answer
    x = 1,302.59

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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.