Home / 7,067.78-10,602.02-2,685.57

Finding the Fourth Proportional to 7,067.78, 10,602.02 and 2,685.57

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Solution

The fourth proportional to 7,067.78, 10,602.02 and 2,685.57 is: 4,028.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.78 : 10,602.02 = 2,685.57 : x
  2. Step 2: Convert to fraction form
    7,067.78/10,602.02 = 2,685.57/x
  3. Step 3: Cross multiply
    7,067.78x = 10,602.02 × 2,685.57
  4. Step 4: Simplify right side
    7,067.78x = 28,472,453.42
  5. Step 5: Solve for x
    x = 28,472,453.42/7,067.78
  6. Step 6: Final answer
    x = 4,028.49

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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.