Home / 3,758.42-5,187.15-2,187.02

Finding the Fourth Proportional to 3,758.42, 5,187.15 and 2,187.02

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Solution

The fourth proportional to 3,758.42, 5,187.15 and 2,187.02 is: 3,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.42 : 5,187.15 = 2,187.02 : x
  2. Step 2: Convert to fraction form
    3,758.42/5,187.15 = 2,187.02/x
  3. Step 3: Cross multiply
    3,758.42x = 5,187.15 × 2,187.02
  4. Step 4: Simplify right side
    3,758.42x = 11,344,374.86
  5. Step 5: Solve for x
    x = 11,344,374.86/3,758.42
  6. Step 6: Final answer
    x = 3,018.39

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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.