Home / 2,757.75-4,132.51-1,113.40

Finding the Fourth Proportional to 2,757.75, 4,132.51 and 1,113.40

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Solution

The fourth proportional to 2,757.75, 4,132.51 and 1,113.40 is: 1,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.75 : 4,132.51 = 1,113.40 : x
  2. Step 2: Convert to fraction form
    2,757.75/4,132.51 = 1,113.40/x
  3. Step 3: Cross multiply
    2,757.75x = 4,132.51 × 1,113.40
  4. Step 4: Simplify right side
    2,757.75x = 4,601,136.63
  5. Step 5: Solve for x
    x = 4,601,136.63/2,757.75
  6. Step 6: Final answer
    x = 1,668.44

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1.5x scale

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.