Home / 2,545.57-3,818.15-1,808.36

Finding the Fourth Proportional to 2,545.57, 3,818.15 and 1,808.36

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Solution

The fourth proportional to 2,545.57, 3,818.15 and 1,808.36 is: 2,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.57 : 3,818.15 = 1,808.36 : x
  2. Step 2: Convert to fraction form
    2,545.57/3,818.15 = 1,808.36/x
  3. Step 3: Cross multiply
    2,545.57x = 3,818.15 × 1,808.36
  4. Step 4: Simplify right side
    2,545.57x = 6,904,589.73
  5. Step 5: Solve for x
    x = 6,904,589.73/2,545.57
  6. Step 6: Final answer
    x = 2,712.39

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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.