Home / 1,262.08-1,741.65-702.55

Finding the Fourth Proportional to 1,262.08, 1,741.65 and 702.55

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Solution

The fourth proportional to 1,262.08, 1,741.65 and 702.55 is: 969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.08 : 1,741.65 = 702.55 : x
  2. Step 2: Convert to fraction form
    1,262.08/1,741.65 = 702.55/x
  3. Step 3: Cross multiply
    1,262.08x = 1,741.65 × 702.55
  4. Step 4: Simplify right side
    1,262.08x = 1,223,596.21
  5. Step 5: Solve for x
    x = 1,223,596.21/1,262.08
  6. Step 6: Final answer
    x = 969.51

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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.