Home / 6,786.43-10,178.29-1,854.90

Finding the Fourth Proportional to 6,786.43, 10,178.29 and 1,854.90

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Solution

The fourth proportional to 6,786.43, 10,178.29 and 1,854.90 is: 2,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.43 : 10,178.29 = 1,854.90 : x
  2. Step 2: Convert to fraction form
    6,786.43/10,178.29 = 1,854.90/x
  3. Step 3: Cross multiply
    6,786.43x = 10,178.29 × 1,854.90
  4. Step 4: Simplify right side
    6,786.43x = 18,879,710.12
  5. Step 5: Solve for x
    x = 18,879,710.12/6,786.43
  6. Step 6: Final answer
    x = 2,781.98

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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.