Home / 1,540.70-2,308.97-1,442.28

Finding the Fourth Proportional to 1,540.70, 2,308.97 and 1,442.28

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Solution

The fourth proportional to 1,540.70, 2,308.97 and 1,442.28 is: 2,161.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.70 : 2,308.97 = 1,442.28 : x
  2. Step 2: Convert to fraction form
    1,540.70/2,308.97 = 1,442.28/x
  3. Step 3: Cross multiply
    1,540.70x = 2,308.97 × 1,442.28
  4. Step 4: Simplify right side
    1,540.70x = 3,330,181.25
  5. Step 5: Solve for x
    x = 3,330,181.25/1,540.70
  6. Step 6: Final answer
    x = 2,161.47

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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.