Home / 5,218-7,200.84-2,860.18

Finding the Fourth Proportional to 5,218, 7,200.84 and 2,860.18

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Solution

The fourth proportional to 5,218, 7,200.84 and 2,860.18 is: 3,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218 : 7,200.84 = 2,860.18 : x
  2. Step 2: Convert to fraction form
    5,218/7,200.84 = 2,860.18/x
  3. Step 3: Cross multiply
    5,218x = 7,200.84 × 2,860.18
  4. Step 4: Simplify right side
    5,218x = 20,595,698.55
  5. Step 5: Solve for x
    x = 20,595,698.55/5,218
  6. Step 6: Final answer
    x = 3,947.05

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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.