Home / 5,216.47-7,198.51-2,858.71

Finding the Fourth Proportional to 5,216.47, 7,198.51 and 2,858.71

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Solution

The fourth proportional to 5,216.47, 7,198.51 and 2,858.71 is: 3,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.47 : 7,198.51 = 2,858.71 : x
  2. Step 2: Convert to fraction form
    5,216.47/7,198.51 = 2,858.71/x
  3. Step 3: Cross multiply
    5,216.47x = 7,198.51 × 2,858.71
  4. Step 4: Simplify right side
    5,216.47x = 20,578,452.52
  5. Step 5: Solve for x
    x = 20,578,452.52/5,216.47
  6. Step 6: Final answer
    x = 3,944.90

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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.