Home / 4,148.88-6,223.68-1,187.38

Finding the Fourth Proportional to 4,148.88, 6,223.68 and 1,187.38

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Solution

The fourth proportional to 4,148.88, 6,223.68 and 1,187.38 is: 1,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.88 : 6,223.68 = 1,187.38 : x
  2. Step 2: Convert to fraction form
    4,148.88/6,223.68 = 1,187.38/x
  3. Step 3: Cross multiply
    4,148.88x = 6,223.68 × 1,187.38
  4. Step 4: Simplify right side
    4,148.88x = 7,389,873.16
  5. Step 5: Solve for x
    x = 7,389,873.16/4,148.88
  6. Step 6: Final answer
    x = 1,781.17

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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.