Home / 4,138.78-5,711.16-2,644.06

Finding the Fourth Proportional to 4,138.78, 5,711.16 and 2,644.06

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Solution

The fourth proportional to 4,138.78, 5,711.16 and 2,644.06 is: 3,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.78 : 5,711.16 = 2,644.06 : x
  2. Step 2: Convert to fraction form
    4,138.78/5,711.16 = 2,644.06/x
  3. Step 3: Cross multiply
    4,138.78x = 5,711.16 × 2,644.06
  4. Step 4: Simplify right side
    4,138.78x = 15,100,649.71
  5. Step 5: Solve for x
    x = 15,100,649.71/4,138.78
  6. Step 6: Final answer
    x = 3,648.58

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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.