Home / 2,786.30-4,178.10-1,552.40

Finding the Fourth Proportional to 2,786.30, 4,178.10 and 1,552.40

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Solution

The fourth proportional to 2,786.30, 4,178.10 and 1,552.40 is: 2,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.30 : 4,178.10 = 1,552.40 : x
  2. Step 2: Convert to fraction form
    2,786.30/4,178.10 = 1,552.40/x
  3. Step 3: Cross multiply
    2,786.30x = 4,178.10 × 1,552.40
  4. Step 4: Simplify right side
    2,786.30x = 6,486,082.44
  5. Step 5: Solve for x
    x = 6,486,082.44/2,786.30
  6. Step 6: Final answer
    x = 2,327.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.