Home / 3,247.07-4,871.41-938.57

Finding the Fourth Proportional to 3,247.07, 4,871.41 and 938.57

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Solution

The fourth proportional to 3,247.07, 4,871.41 and 938.57 is: 1,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.07 : 4,871.41 = 938.57 : x
  2. Step 2: Convert to fraction form
    3,247.07/4,871.41 = 938.57/x
  3. Step 3: Cross multiply
    3,247.07x = 4,871.41 × 938.57
  4. Step 4: Simplify right side
    3,247.07x = 4,572,159.28
  5. Step 5: Solve for x
    x = 4,572,159.28/3,247.07
  6. Step 6: Final answer
    x = 1,408.09

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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.