Home / 7,189.08-10,777.20-2,805.51

Finding the Fourth Proportional to 7,189.08, 10,777.20 and 2,805.51

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Solution

The fourth proportional to 7,189.08, 10,777.20 and 2,805.51 is: 4,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.08 : 10,777.20 = 2,805.51 : x
  2. Step 2: Convert to fraction form
    7,189.08/10,777.20 = 2,805.51/x
  3. Step 3: Cross multiply
    7,189.08x = 10,777.20 × 2,805.51
  4. Step 4: Simplify right side
    7,189.08x = 30,235,542.37
  5. Step 5: Solve for x
    x = 30,235,542.37/7,189.08
  6. Step 6: Final answer
    x = 4,205.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.