Home / 3,900.17-5,377.29-2,837.11

Finding the Fourth Proportional to 3,900.17, 5,377.29 and 2,837.11

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Solution

The fourth proportional to 3,900.17, 5,377.29 and 2,837.11 is: 3,911.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.17 : 5,377.29 = 2,837.11 : x
  2. Step 2: Convert to fraction form
    3,900.17/5,377.29 = 2,837.11/x
  3. Step 3: Cross multiply
    3,900.17x = 5,377.29 × 2,837.11
  4. Step 4: Simplify right side
    3,900.17x = 15,255,936.35
  5. Step 5: Solve for x
    x = 15,255,936.35/3,900.17
  6. Step 6: Final answer
    x = 3,911.61

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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.