Home / 5,151.99-7,109.72-2,794.13

Finding the Fourth Proportional to 5,151.99, 7,109.72 and 2,794.13

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Solution

The fourth proportional to 5,151.99, 7,109.72 and 2,794.13 is: 3,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.99 : 7,109.72 = 2,794.13 : x
  2. Step 2: Convert to fraction form
    5,151.99/7,109.72 = 2,794.13/x
  3. Step 3: Cross multiply
    5,151.99x = 7,109.72 × 2,794.13
  4. Step 4: Simplify right side
    5,151.99x = 19,865,432.42
  5. Step 5: Solve for x
    x = 19,865,432.42/5,151.99
  6. Step 6: Final answer
    x = 3,855.88

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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.