Home / 3,715.88-5,125.41-3,108.51

Finding the Fourth Proportional to 3,715.88, 5,125.41 and 3,108.51

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Solution

The fourth proportional to 3,715.88, 5,125.41 and 3,108.51 is: 4,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.88 : 5,125.41 = 3,108.51 : x
  2. Step 2: Convert to fraction form
    3,715.88/5,125.41 = 3,108.51/x
  3. Step 3: Cross multiply
    3,715.88x = 5,125.41 × 3,108.51
  4. Step 4: Simplify right side
    3,715.88x = 15,932,388.24
  5. Step 5: Solve for x
    x = 15,932,388.24/3,715.88
  6. Step 6: Final answer
    x = 4,287.65

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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.