Home / 2,881.36-3,966.66-2,749.11

Finding the Fourth Proportional to 2,881.36, 3,966.66 and 2,749.11

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Solution

The fourth proportional to 2,881.36, 3,966.66 and 2,749.11 is: 3,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.36 : 3,966.66 = 2,749.11 : x
  2. Step 2: Convert to fraction form
    2,881.36/3,966.66 = 2,749.11/x
  3. Step 3: Cross multiply
    2,881.36x = 3,966.66 × 2,749.11
  4. Step 4: Simplify right side
    2,881.36x = 10,904,784.67
  5. Step 5: Solve for x
    x = 10,904,784.67/2,881.36
  6. Step 6: Final answer
    x = 3,784.60

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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.