Home / 2,101.54-3,148.20-1,545.22

Finding the Fourth Proportional to 2,101.54, 3,148.20 and 1,545.22

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Solution

The fourth proportional to 2,101.54, 3,148.20 and 1,545.22 is: 2,314.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.54 : 3,148.20 = 1,545.22 : x
  2. Step 2: Convert to fraction form
    2,101.54/3,148.20 = 1,545.22/x
  3. Step 3: Cross multiply
    2,101.54x = 3,148.20 × 1,545.22
  4. Step 4: Simplify right side
    2,101.54x = 4,864,653.73
  5. Step 5: Solve for x
    x = 4,864,653.73/2,101.54
  6. Step 6: Final answer
    x = 2,314.81

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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.