Home / 1,307.53-1,961.30-576.91

Finding the Fourth Proportional to 1,307.53, 1,961.30 and 576.91

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Solution

The fourth proportional to 1,307.53, 1,961.30 and 576.91 is: 865.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.53 : 1,961.30 = 576.91 : x
  2. Step 2: Convert to fraction form
    1,307.53/1,961.30 = 576.91/x
  3. Step 3: Cross multiply
    1,307.53x = 1,961.30 × 576.91
  4. Step 4: Simplify right side
    1,307.53x = 1,131,493.58
  5. Step 5: Solve for x
    x = 1,131,493.58/1,307.53
  6. Step 6: Final answer
    x = 865.37

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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.