Home / 5,149.13-7,105.76-2,911.00

Finding the Fourth Proportional to 5,149.13, 7,105.76 and 2,911.00

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Solution

The fourth proportional to 5,149.13, 7,105.76 and 2,911.00 is: 4,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.13 : 7,105.76 = 2,911.00 : x
  2. Step 2: Convert to fraction form
    5,149.13/7,105.76 = 2,911.00/x
  3. Step 3: Cross multiply
    5,149.13x = 7,105.76 × 2,911.00
  4. Step 4: Simplify right side
    5,149.13x = 20,684,854.84
  5. Step 5: Solve for x
    x = 20,684,854.84/5,149.13
  6. Step 6: Final answer
    x = 4,017.16

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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.