Home / 3,758.17-5,186.19-2,187.13

Finding the Fourth Proportional to 3,758.17, 5,186.19 and 2,187.13

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Solution

The fourth proportional to 3,758.17, 5,186.19 and 2,187.13 is: 3,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.17 : 5,186.19 = 2,187.13 : x
  2. Step 2: Convert to fraction form
    3,758.17/5,186.19 = 2,187.13/x
  3. Step 3: Cross multiply
    3,758.17x = 5,186.19 × 2,187.13
  4. Step 4: Simplify right side
    3,758.17x = 11,342,871.73
  5. Step 5: Solve for x
    x = 11,342,871.73/3,758.17
  6. Step 6: Final answer
    x = 3,018.19

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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.