Home / 1,488.24-2,053.78-825.08

Finding the Fourth Proportional to 1,488.24, 2,053.78 and 825.08

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Solution

The fourth proportional to 1,488.24, 2,053.78 and 825.08 is: 1,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.24 : 2,053.78 = 825.08 : x
  2. Step 2: Convert to fraction form
    1,488.24/2,053.78 = 825.08/x
  3. Step 3: Cross multiply
    1,488.24x = 2,053.78 × 825.08
  4. Step 4: Simplify right side
    1,488.24x = 1,694,535.87
  5. Step 5: Solve for x
    x = 1,694,535.87/1,488.24
  6. Step 6: Final answer
    x = 1,138.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.