Home / 2,649.29-3,973.93-1,188.44

Finding the Fourth Proportional to 2,649.29, 3,973.93 and 1,188.44

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Solution

The fourth proportional to 2,649.29, 3,973.93 and 1,188.44 is: 1,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.29 : 3,973.93 = 1,188.44 : x
  2. Step 2: Convert to fraction form
    2,649.29/3,973.93 = 1,188.44/x
  3. Step 3: Cross multiply
    2,649.29x = 3,973.93 × 1,188.44
  4. Step 4: Simplify right side
    2,649.29x = 4,722,754.53
  5. Step 5: Solve for x
    x = 4,722,754.53/2,649.29
  6. Step 6: Final answer
    x = 1,782.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.