Home / 5,149.23-7,106.97-2,911.14

Finding the Fourth Proportional to 5,149.23, 7,106.97 and 2,911.14

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Solution

The fourth proportional to 5,149.23, 7,106.97 and 2,911.14 is: 4,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.23 : 7,106.97 = 2,911.14 : x
  2. Step 2: Convert to fraction form
    5,149.23/7,106.97 = 2,911.14/x
  3. Step 3: Cross multiply
    5,149.23x = 7,106.97 × 2,911.14
  4. Step 4: Simplify right side
    5,149.23x = 20,689,384.65
  5. Step 5: Solve for x
    x = 20,689,384.65/5,149.23
  6. Step 6: Final answer
    x = 4,017.96

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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.