Home / 3,456.76-5,187.12-1,814.80

Finding the Fourth Proportional to 3,456.76, 5,187.12 and 1,814.80

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Solution

The fourth proportional to 3,456.76, 5,187.12 and 1,814.80 is: 2,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.76 : 5,187.12 = 1,814.80 : x
  2. Step 2: Convert to fraction form
    3,456.76/5,187.12 = 1,814.80/x
  3. Step 3: Cross multiply
    3,456.76x = 5,187.12 × 1,814.80
  4. Step 4: Simplify right side
    3,456.76x = 9,413,585.38
  5. Step 5: Solve for x
    x = 9,413,585.38/3,456.76
  6. Step 6: Final answer
    x = 2,723.24

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1.5x scale

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.