Home / 5,149.22-7,105.83-2,911.01

Finding the Fourth Proportional to 5,149.22, 7,105.83 and 2,911.01

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Solution

The fourth proportional to 5,149.22, 7,105.83 and 2,911.01 is: 4,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.22 : 7,105.83 = 2,911.01 : x
  2. Step 2: Convert to fraction form
    5,149.22/7,105.83 = 2,911.01/x
  3. Step 3: Cross multiply
    5,149.22x = 7,105.83 × 2,911.01
  4. Step 4: Simplify right side
    5,149.22x = 20,685,106.66
  5. Step 5: Solve for x
    x = 20,685,106.66/5,149.22
  6. Step 6: Final answer
    x = 4,017.14

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1.5x scale

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.