Home / 3,717.78-5,126.10-2,391.54

Finding the Fourth Proportional to 3,717.78, 5,126.10 and 2,391.54

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Solution

The fourth proportional to 3,717.78, 5,126.10 and 2,391.54 is: 3,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.78 : 5,126.10 = 2,391.54 : x
  2. Step 2: Convert to fraction form
    3,717.78/5,126.10 = 2,391.54/x
  3. Step 3: Cross multiply
    3,717.78x = 5,126.10 × 2,391.54
  4. Step 4: Simplify right side
    3,717.78x = 12,259,273.19
  5. Step 5: Solve for x
    x = 12,259,273.19/3,717.78
  6. Step 6: Final answer
    x = 3,297.47

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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.