Home / 2,117.76-3,176.46-1,294.44

Finding the Fourth Proportional to 2,117.76, 3,176.46 and 1,294.44

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Solution

The fourth proportional to 2,117.76, 3,176.46 and 1,294.44 is: 1,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.76 : 3,176.46 = 1,294.44 : x
  2. Step 2: Convert to fraction form
    2,117.76/3,176.46 = 1,294.44/x
  3. Step 3: Cross multiply
    2,117.76x = 3,176.46 × 1,294.44
  4. Step 4: Simplify right side
    2,117.76x = 4,111,736.88
  5. Step 5: Solve for x
    x = 4,111,736.88/2,117.76
  6. Step 6: Final answer
    x = 1,941.55

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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.