Home / 2,718.67-4,079.36-1,076.40

Finding the Fourth Proportional to 2,718.67, 4,079.36 and 1,076.40

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Solution

The fourth proportional to 2,718.67, 4,079.36 and 1,076.40 is: 1,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.67 : 4,079.36 = 1,076.40 : x
  2. Step 2: Convert to fraction form
    2,718.67/4,079.36 = 1,076.40/x
  3. Step 3: Cross multiply
    2,718.67x = 4,079.36 × 1,076.40
  4. Step 4: Simplify right side
    2,718.67x = 4,391,023.10
  5. Step 5: Solve for x
    x = 4,391,023.10/2,718.67
  6. Step 6: Final answer
    x = 1,615.14

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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.