Home / 2,764.55-4,147.13-1,120.86

Finding the Fourth Proportional to 2,764.55, 4,147.13 and 1,120.86

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Solution

The fourth proportional to 2,764.55, 4,147.13 and 1,120.86 is: 1,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.55 : 4,147.13 = 1,120.86 : x
  2. Step 2: Convert to fraction form
    2,764.55/4,147.13 = 1,120.86/x
  3. Step 3: Cross multiply
    2,764.55x = 4,147.13 × 1,120.86
  4. Step 4: Simplify right side
    2,764.55x = 4,648,354.93
  5. Step 5: Solve for x
    x = 4,648,354.93/2,764.55
  6. Step 6: Final answer
    x = 1,681.41

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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.