Home / 3,637.78-5,456.72-1,172.61

Finding the Fourth Proportional to 3,637.78, 5,456.72 and 1,172.61

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Solution

The fourth proportional to 3,637.78, 5,456.72 and 1,172.61 is: 1,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.78 : 5,456.72 = 1,172.61 : x
  2. Step 2: Convert to fraction form
    3,637.78/5,456.72 = 1,172.61/x
  3. Step 3: Cross multiply
    3,637.78x = 5,456.72 × 1,172.61
  4. Step 4: Simplify right side
    3,637.78x = 6,398,607.37
  5. Step 5: Solve for x
    x = 6,398,607.37/3,637.78
  6. Step 6: Final answer
    x = 1,758.93

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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.