Home / 2,765.66-4,148.69-2,391.71

Finding the Fourth Proportional to 2,765.66, 4,148.69 and 2,391.71

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Solution

The fourth proportional to 2,765.66, 4,148.69 and 2,391.71 is: 3,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.66 : 4,148.69 = 2,391.71 : x
  2. Step 2: Convert to fraction form
    2,765.66/4,148.69 = 2,391.71/x
  3. Step 3: Cross multiply
    2,765.66x = 4,148.69 × 2,391.71
  4. Step 4: Simplify right side
    2,765.66x = 9,922,430.66
  5. Step 5: Solve for x
    x = 9,922,430.66/2,765.66
  6. Step 6: Final answer
    x = 3,587.73

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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.