Home / 2,545.86-3,819.95-1,621.19

Finding the Fourth Proportional to 2,545.86, 3,819.95 and 1,621.19

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Solution

The fourth proportional to 2,545.86, 3,819.95 and 1,621.19 is: 2,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.86 : 3,819.95 = 1,621.19 : x
  2. Step 2: Convert to fraction form
    2,545.86/3,819.95 = 1,621.19/x
  3. Step 3: Cross multiply
    2,545.86x = 3,819.95 × 1,621.19
  4. Step 4: Simplify right side
    2,545.86x = 6,192,837.53
  5. Step 5: Solve for x
    x = 6,192,837.53/2,545.86
  6. Step 6: Final answer
    x = 2,432.51

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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.