Home / 2,776.65-3,831.88-1,517.79

Finding the Fourth Proportional to 2,776.65, 3,831.88 and 1,517.79

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Solution

The fourth proportional to 2,776.65, 3,831.88 and 1,517.79 is: 2,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.65 : 3,831.88 = 1,517.79 : x
  2. Step 2: Convert to fraction form
    2,776.65/3,831.88 = 1,517.79/x
  3. Step 3: Cross multiply
    2,776.65x = 3,831.88 × 1,517.79
  4. Step 4: Simplify right side
    2,776.65x = 5,815,984.60
  5. Step 5: Solve for x
    x = 5,815,984.60/2,776.65
  6. Step 6: Final answer
    x = 2,094.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.