Home / 1,488.91-2,226.80-1,325.54

Finding the Fourth Proportional to 1,488.91, 2,226.80 and 1,325.54

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Solution

The fourth proportional to 1,488.91, 2,226.80 and 1,325.54 is: 1,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.91 : 2,226.80 = 1,325.54 : x
  2. Step 2: Convert to fraction form
    1,488.91/2,226.80 = 1,325.54/x
  3. Step 3: Cross multiply
    1,488.91x = 2,226.80 × 1,325.54
  4. Step 4: Simplify right side
    1,488.91x = 2,951,712.47
  5. Step 5: Solve for x
    x = 2,951,712.47/1,488.91
  6. Step 6: Final answer
    x = 1,982.47

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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.