Home / 5,218.20-7,200.96-2,860.26

Finding the Fourth Proportional to 5,218.20, 7,200.96 and 2,860.26

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Solution

The fourth proportional to 5,218.20, 7,200.96 and 2,860.26 is: 3,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.20 : 7,200.96 = 2,860.26 : x
  2. Step 2: Convert to fraction form
    5,218.20/7,200.96 = 2,860.26/x
  3. Step 3: Cross multiply
    5,218.20x = 7,200.96 × 2,860.26
  4. Step 4: Simplify right side
    5,218.20x = 20,596,617.85
  5. Step 5: Solve for x
    x = 20,596,617.85/5,218.20
  6. Step 6: Final answer
    x = 3,947.07

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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.