Home / 5,277.12-7,912.96-2,805.76

Finding the Fourth Proportional to 5,277.12, 7,912.96 and 2,805.76

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Solution

The fourth proportional to 5,277.12, 7,912.96 and 2,805.76 is: 4,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.12 : 7,912.96 = 2,805.76 : x
  2. Step 2: Convert to fraction form
    5,277.12/7,912.96 = 2,805.76/x
  3. Step 3: Cross multiply
    5,277.12x = 7,912.96 × 2,805.76
  4. Step 4: Simplify right side
    5,277.12x = 22,201,866.65
  5. Step 5: Solve for x
    x = 22,201,866.65/5,277.12
  6. Step 6: Final answer
    x = 4,207.19

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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.