Home / 1,540.67-2,136.40-1,488.71

Finding the Fourth Proportional to 1,540.67, 2,136.40 and 1,488.71

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Solution

The fourth proportional to 1,540.67, 2,136.40 and 1,488.71 is: 2,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.67 : 2,136.40 = 1,488.71 : x
  2. Step 2: Convert to fraction form
    1,540.67/2,136.40 = 1,488.71/x
  3. Step 3: Cross multiply
    1,540.67x = 2,136.40 × 1,488.71
  4. Step 4: Simplify right side
    1,540.67x = 3,180,481.66
  5. Step 5: Solve for x
    x = 3,180,481.66/1,540.67
  6. Step 6: Final answer
    x = 2,064.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.