Home / 1,926.88-2,658.60-1,180.57

Finding the Fourth Proportional to 1,926.88, 2,658.60 and 1,180.57

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Solution

The fourth proportional to 1,926.88, 2,658.60 and 1,180.57 is: 1,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.88 : 2,658.60 = 1,180.57 : x
  2. Step 2: Convert to fraction form
    1,926.88/2,658.60 = 1,180.57/x
  3. Step 3: Cross multiply
    1,926.88x = 2,658.60 × 1,180.57
  4. Step 4: Simplify right side
    1,926.88x = 3,138,663.40
  5. Step 5: Solve for x
    x = 3,138,663.40/1,926.88
  6. Step 6: Final answer
    x = 1,628.88

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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.