Home / 6,526.80-9,791.28-2,145.24

Finding the Fourth Proportional to 6,526.80, 9,791.28 and 2,145.24

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Solution

The fourth proportional to 6,526.80, 9,791.28 and 2,145.24 is: 3,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,526.80 : 9,791.28 = 2,145.24 : x
  2. Step 2: Convert to fraction form
    6,526.80/9,791.28 = 2,145.24/x
  3. Step 3: Cross multiply
    6,526.80x = 9,791.28 × 2,145.24
  4. Step 4: Simplify right side
    6,526.80x = 21,004,645.51
  5. Step 5: Solve for x
    x = 21,004,645.51/6,526.80
  6. Step 6: Final answer
    x = 3,218.21

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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.