Home / 2,545.74-3,819.75-1,621.05

Finding the Fourth Proportional to 2,545.74, 3,819.75 and 1,621.05

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Solution

The fourth proportional to 2,545.74, 3,819.75 and 1,621.05 is: 2,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.74 : 3,819.75 = 1,621.05 : x
  2. Step 2: Convert to fraction form
    2,545.74/3,819.75 = 1,621.05/x
  3. Step 3: Cross multiply
    2,545.74x = 3,819.75 × 1,621.05
  4. Step 4: Simplify right side
    2,545.74x = 6,192,005.74
  5. Step 5: Solve for x
    x = 6,192,005.74/2,545.74
  6. Step 6: Final answer
    x = 2,432.30

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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.