Home / 7,761.35-11,642.06-3,318.37

Finding the Fourth Proportional to 7,761.35, 11,642.06 and 3,318.37

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Solution

The fourth proportional to 7,761.35, 11,642.06 and 3,318.37 is: 4,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.35 : 11,642.06 = 3,318.37 : x
  2. Step 2: Convert to fraction form
    7,761.35/11,642.06 = 3,318.37/x
  3. Step 3: Cross multiply
    7,761.35x = 11,642.06 × 3,318.37
  4. Step 4: Simplify right side
    7,761.35x = 38,632,641.83
  5. Step 5: Solve for x
    x = 38,632,641.83/7,761.35
  6. Step 6: Final answer
    x = 4,977.57

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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.