Home / 3,428.72-5,143.08-1,237.41

Finding the Fourth Proportional to 3,428.72, 5,143.08 and 1,237.41

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Solution

The fourth proportional to 3,428.72, 5,143.08 and 1,237.41 is: 1,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.72 : 5,143.08 = 1,237.41 : x
  2. Step 2: Convert to fraction form
    3,428.72/5,143.08 = 1,237.41/x
  3. Step 3: Cross multiply
    3,428.72x = 5,143.08 × 1,237.41
  4. Step 4: Simplify right side
    3,428.72x = 6,364,098.62
  5. Step 5: Solve for x
    x = 6,364,098.62/3,428.72
  6. Step 6: Final answer
    x = 1,856.12

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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.