Home / 1,926.92-2,658.20-1,180.64

Finding the Fourth Proportional to 1,926.92, 2,658.20 and 1,180.64

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Solution

The fourth proportional to 1,926.92, 2,658.20 and 1,180.64 is: 1,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.92 : 2,658.20 = 1,180.64 : x
  2. Step 2: Convert to fraction form
    1,926.92/2,658.20 = 1,180.64/x
  3. Step 3: Cross multiply
    1,926.92x = 2,658.20 × 1,180.64
  4. Step 4: Simplify right side
    1,926.92x = 3,138,377.25
  5. Step 5: Solve for x
    x = 3,138,377.25/1,926.92
  6. Step 6: Final answer
    x = 1,628.70

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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.