Home / 5,218.01-7,200.86-2,860.30

Finding the Fourth Proportional to 5,218.01, 7,200.86 and 2,860.30

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Solution

The fourth proportional to 5,218.01, 7,200.86 and 2,860.30 is: 3,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.01 : 7,200.86 = 2,860.30 : x
  2. Step 2: Convert to fraction form
    5,218.01/7,200.86 = 2,860.30/x
  3. Step 3: Cross multiply
    5,218.01x = 7,200.86 × 2,860.30
  4. Step 4: Simplify right side
    5,218.01x = 20,596,619.86
  5. Step 5: Solve for x
    x = 20,596,619.86/5,218.01
  6. Step 6: Final answer
    x = 3,947.22

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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.