Home / 5,218.46-7,201.50-2,860.56

Finding the Fourth Proportional to 5,218.46, 7,201.50 and 2,860.56

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Solution

The fourth proportional to 5,218.46, 7,201.50 and 2,860.56 is: 3,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.46 : 7,201.50 = 2,860.56 : x
  2. Step 2: Convert to fraction form
    5,218.46/7,201.50 = 2,860.56/x
  3. Step 3: Cross multiply
    5,218.46x = 7,201.50 × 2,860.56
  4. Step 4: Simplify right side
    5,218.46x = 20,600,322.84
  5. Step 5: Solve for x
    x = 20,600,322.84/5,218.46
  6. Step 6: Final answer
    x = 3,947.59

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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.