Home / 3,717.50-5,129.43-2,391.02

Finding the Fourth Proportional to 3,717.50, 5,129.43 and 2,391.02

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Solution

The fourth proportional to 3,717.50, 5,129.43 and 2,391.02 is: 3,299.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.50 : 5,129.43 = 2,391.02 : x
  2. Step 2: Convert to fraction form
    3,717.50/5,129.43 = 2,391.02/x
  3. Step 3: Cross multiply
    3,717.50x = 5,129.43 × 2,391.02
  4. Step 4: Simplify right side
    3,717.50x = 12,264,554.34
  5. Step 5: Solve for x
    x = 12,264,554.34/3,717.50
  6. Step 6: Final answer
    x = 3,299.14

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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.