Home / 7,810.72-11,713.62-2,615.38

Finding the Fourth Proportional to 7,810.72, 11,713.62 and 2,615.38

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Solution

The fourth proportional to 7,810.72, 11,713.62 and 2,615.38 is: 3,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.72 : 11,713.62 = 2,615.38 : x
  2. Step 2: Convert to fraction form
    7,810.72/11,713.62 = 2,615.38/x
  3. Step 3: Cross multiply
    7,810.72x = 11,713.62 × 2,615.38
  4. Step 4: Simplify right side
    7,810.72x = 30,635,567.48
  5. Step 5: Solve for x
    x = 30,635,567.48/7,810.72
  6. Step 6: Final answer
    x = 3,922.25

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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.