Home / 5,631.11-7,766.70-4,993.79

Finding the Fourth Proportional to 5,631.11, 7,766.70 and 4,993.79

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Solution

The fourth proportional to 5,631.11, 7,766.70 and 4,993.79 is: 6,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.11 : 7,766.70 = 4,993.79 : x
  2. Step 2: Convert to fraction form
    5,631.11/7,766.70 = 4,993.79/x
  3. Step 3: Cross multiply
    5,631.11x = 7,766.70 × 4,993.79
  4. Step 4: Simplify right side
    5,631.11x = 38,785,268.79
  5. Step 5: Solve for x
    x = 38,785,268.79/5,631.11
  6. Step 6: Final answer
    x = 6,887.68

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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.