Home / 3,717.30-5,131.57-2,391.74

Finding the Fourth Proportional to 3,717.30, 5,131.57 and 2,391.74

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Solution

The fourth proportional to 3,717.30, 5,131.57 and 2,391.74 is: 3,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.30 : 5,131.57 = 2,391.74 : x
  2. Step 2: Convert to fraction form
    3,717.30/5,131.57 = 2,391.74/x
  3. Step 3: Cross multiply
    3,717.30x = 5,131.57 × 2,391.74
  4. Step 4: Simplify right side
    3,717.30x = 12,273,381.23
  5. Step 5: Solve for x
    x = 12,273,381.23/3,717.30
  6. Step 6: Final answer
    x = 3,301.69

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1.5x scale

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.