Home / 2,760.67-4,140.97-1,117.20

Finding the Fourth Proportional to 2,760.67, 4,140.97 and 1,117.20

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Solution

The fourth proportional to 2,760.67, 4,140.97 and 1,117.20 is: 1,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.67 : 4,140.97 = 1,117.20 : x
  2. Step 2: Convert to fraction form
    2,760.67/4,140.97 = 1,117.20/x
  3. Step 3: Cross multiply
    2,760.67x = 4,140.97 × 1,117.20
  4. Step 4: Simplify right side
    2,760.67x = 4,626,291.68
  5. Step 5: Solve for x
    x = 4,626,291.68/2,760.67
  6. Step 6: Final answer
    x = 1,675.79

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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.