Home / 2,749.17-4,122.69-2,165.31

Finding the Fourth Proportional to 2,749.17, 4,122.69 and 2,165.31

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Solution

The fourth proportional to 2,749.17, 4,122.69 and 2,165.31 is: 3,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.17 : 4,122.69 = 2,165.31 : x
  2. Step 2: Convert to fraction form
    2,749.17/4,122.69 = 2,165.31/x
  3. Step 3: Cross multiply
    2,749.17x = 4,122.69 × 2,165.31
  4. Step 4: Simplify right side
    2,749.17x = 8,926,901.88
  5. Step 5: Solve for x
    x = 8,926,901.88/2,749.17
  6. Step 6: Final answer
    x = 3,247.13

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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.