Home / 5,108.32-7,049.37-2,839.51

Finding the Fourth Proportional to 5,108.32, 7,049.37 and 2,839.51

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Solution

The fourth proportional to 5,108.32, 7,049.37 and 2,839.51 is: 3,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.32 : 7,049.37 = 2,839.51 : x
  2. Step 2: Convert to fraction form
    5,108.32/7,049.37 = 2,839.51/x
  3. Step 3: Cross multiply
    5,108.32x = 7,049.37 × 2,839.51
  4. Step 4: Simplify right side
    5,108.32x = 20,016,756.61
  5. Step 5: Solve for x
    x = 20,016,756.61/5,108.32
  6. Step 6: Final answer
    x = 3,918.46

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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.