Home / 1,951.24-2,926.86-490.39

Finding the Fourth Proportional to 1,951.24, 2,926.86 and 490.39

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Solution

The fourth proportional to 1,951.24, 2,926.86 and 490.39 is: 735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.24 : 2,926.86 = 490.39 : x
  2. Step 2: Convert to fraction form
    1,951.24/2,926.86 = 490.39/x
  3. Step 3: Cross multiply
    1,951.24x = 2,926.86 × 490.39
  4. Step 4: Simplify right side
    1,951.24x = 1,435,302.88
  5. Step 5: Solve for x
    x = 1,435,302.88/1,951.24
  6. Step 6: Final answer
    x = 735.59

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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.