Home / 2,118.68-3,177.52-1,022.48

Finding the Fourth Proportional to 2,118.68, 3,177.52 and 1,022.48

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Solution

The fourth proportional to 2,118.68, 3,177.52 and 1,022.48 is: 1,533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.68 : 3,177.52 = 1,022.48 : x
  2. Step 2: Convert to fraction form
    2,118.68/3,177.52 = 1,022.48/x
  3. Step 3: Cross multiply
    2,118.68x = 3,177.52 × 1,022.48
  4. Step 4: Simplify right side
    2,118.68x = 3,248,950.65
  5. Step 5: Solve for x
    x = 3,248,950.65/2,118.68
  6. Step 6: Final answer
    x = 1,533.48

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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.