Home / 1,262.35-1,741.84-702.82

Finding the Fourth Proportional to 1,262.35, 1,741.84 and 702.82

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Solution

The fourth proportional to 1,262.35, 1,741.84 and 702.82 is: 969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.35 : 1,741.84 = 702.82 : x
  2. Step 2: Convert to fraction form
    1,262.35/1,741.84 = 702.82/x
  3. Step 3: Cross multiply
    1,262.35x = 1,741.84 × 702.82
  4. Step 4: Simplify right side
    1,262.35x = 1,224,199.99
  5. Step 5: Solve for x
    x = 1,224,199.99/1,262.35
  6. Step 6: Final answer
    x = 969.78

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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.