Home / 3,188.47-4,399.90-1,772.11

Finding the Fourth Proportional to 3,188.47, 4,399.90 and 1,772.11

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Solution

The fourth proportional to 3,188.47, 4,399.90 and 1,772.11 is: 2,445.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.47 : 4,399.90 = 1,772.11 : x
  2. Step 2: Convert to fraction form
    3,188.47/4,399.90 = 1,772.11/x
  3. Step 3: Cross multiply
    3,188.47x = 4,399.90 × 1,772.11
  4. Step 4: Simplify right side
    3,188.47x = 7,797,102.66
  5. Step 5: Solve for x
    x = 7,797,102.66/3,188.47
  6. Step 6: Final answer
    x = 2,445.41

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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.