Home / 6,711.86-9,261.68-3,918.98

Finding the Fourth Proportional to 6,711.86, 9,261.68 and 3,918.98

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Solution

The fourth proportional to 6,711.86, 9,261.68 and 3,918.98 is: 5,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.86 : 9,261.68 = 3,918.98 : x
  2. Step 2: Convert to fraction form
    6,711.86/9,261.68 = 3,918.98/x
  3. Step 3: Cross multiply
    6,711.86x = 9,261.68 × 3,918.98
  4. Step 4: Simplify right side
    6,711.86x = 36,296,338.69
  5. Step 5: Solve for x
    x = 36,296,338.69/6,711.86
  6. Step 6: Final answer
    x = 5,407.79

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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.