Home / 5,216.31-7,198.56-2,858.49

Finding the Fourth Proportional to 5,216.31, 7,198.56 and 2,858.49

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Solution

The fourth proportional to 5,216.31, 7,198.56 and 2,858.49 is: 3,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.31 : 7,198.56 = 2,858.49 : x
  2. Step 2: Convert to fraction form
    5,216.31/7,198.56 = 2,858.49/x
  3. Step 3: Cross multiply
    5,216.31x = 7,198.56 × 2,858.49
  4. Step 4: Simplify right side
    5,216.31x = 20,577,011.77
  5. Step 5: Solve for x
    x = 20,577,011.77/5,216.31
  6. Step 6: Final answer
    x = 3,944.74

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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.