Home / 2,747.19-4,121.31-1,103.87

Finding the Fourth Proportional to 2,747.19, 4,121.31 and 1,103.87

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Solution

The fourth proportional to 2,747.19, 4,121.31 and 1,103.87 is: 1,656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.19 : 4,121.31 = 1,103.87 : x
  2. Step 2: Convert to fraction form
    2,747.19/4,121.31 = 1,103.87/x
  3. Step 3: Cross multiply
    2,747.19x = 4,121.31 × 1,103.87
  4. Step 4: Simplify right side
    2,747.19x = 4,549,364.34
  5. Step 5: Solve for x
    x = 4,549,364.34/2,747.19
  6. Step 6: Final answer
    x = 1,656.01

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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.