Home / 1,262.32-1,741.98-702.79

Finding the Fourth Proportional to 1,262.32, 1,741.98 and 702.79

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Solution

The fourth proportional to 1,262.32, 1,741.98 and 702.79 is: 969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.32 : 1,741.98 = 702.79 : x
  2. Step 2: Convert to fraction form
    1,262.32/1,741.98 = 702.79/x
  3. Step 3: Cross multiply
    1,262.32x = 1,741.98 × 702.79
  4. Step 4: Simplify right side
    1,262.32x = 1,224,246.12
  5. Step 5: Solve for x
    x = 1,224,246.12/1,262.32
  6. Step 6: Final answer
    x = 969.84

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1.5x scale

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.