Home / 1,542.44-2,129.66-1,019.56

Finding the Fourth Proportional to 1,542.44, 2,129.66 and 1,019.56

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Solution

The fourth proportional to 1,542.44, 2,129.66 and 1,019.56 is: 1,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.44 : 2,129.66 = 1,019.56 : x
  2. Step 2: Convert to fraction form
    1,542.44/2,129.66 = 1,019.56/x
  3. Step 3: Cross multiply
    1,542.44x = 2,129.66 × 1,019.56
  4. Step 4: Simplify right side
    1,542.44x = 2,171,316.15
  5. Step 5: Solve for x
    x = 2,171,316.15/1,542.44
  6. Step 6: Final answer
    x = 1,407.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.