Home / 5,150.07-7,717.80-2,515.64

Finding the Fourth Proportional to 5,150.07, 7,717.80 and 2,515.64

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Solution

The fourth proportional to 5,150.07, 7,717.80 and 2,515.64 is: 3,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.07 : 7,717.80 = 2,515.64 : x
  2. Step 2: Convert to fraction form
    5,150.07/7,717.80 = 2,515.64/x
  3. Step 3: Cross multiply
    5,150.07x = 7,717.80 × 2,515.64
  4. Step 4: Simplify right side
    5,150.07x = 19,415,167.80
  5. Step 5: Solve for x
    x = 19,415,167.80/5,150.07
  6. Step 6: Final answer
    x = 3,769.88

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1.5x scale

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.