Home / 4,475.31-6,712.45-1,188.66

Finding the Fourth Proportional to 4,475.31, 6,712.45 and 1,188.66

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Solution

The fourth proportional to 4,475.31, 6,712.45 and 1,188.66 is: 1,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,475.31 : 6,712.45 = 1,188.66 : x
  2. Step 2: Convert to fraction form
    4,475.31/6,712.45 = 1,188.66/x
  3. Step 3: Cross multiply
    4,475.31x = 6,712.45 × 1,188.66
  4. Step 4: Simplify right side
    4,475.31x = 7,978,781.31
  5. Step 5: Solve for x
    x = 7,978,781.31/4,475.31
  6. Step 6: Final answer
    x = 1,782.85

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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.