Home / 1,307.97-1,961.56-527.72

Finding the Fourth Proportional to 1,307.97, 1,961.56 and 527.72

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Solution

The fourth proportional to 1,307.97, 1,961.56 and 527.72 is: 791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.97 : 1,961.56 = 527.72 : x
  2. Step 2: Convert to fraction form
    1,307.97/1,961.56 = 527.72/x
  3. Step 3: Cross multiply
    1,307.97x = 1,961.56 × 527.72
  4. Step 4: Simplify right side
    1,307.97x = 1,035,154.44
  5. Step 5: Solve for x
    x = 1,035,154.44/1,307.97
  6. Step 6: Final answer
    x = 791.42

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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.