Home / 7,900.81-11,854.67-3,743.79

Finding the Fourth Proportional to 7,900.81, 11,854.67 and 3,743.79

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Solution

The fourth proportional to 7,900.81, 11,854.67 and 3,743.79 is: 5,617.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.81 : 11,854.67 = 3,743.79 : x
  2. Step 2: Convert to fraction form
    7,900.81/11,854.67 = 3,743.79/x
  3. Step 3: Cross multiply
    7,900.81x = 11,854.67 × 3,743.79
  4. Step 4: Simplify right side
    7,900.81x = 44,381,352.88
  5. Step 5: Solve for x
    x = 44,381,352.88/7,900.81
  6. Step 6: Final answer
    x = 5,617.32

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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.