Home / 5,122.59-7,677.81-2,194.71

Finding the Fourth Proportional to 5,122.59, 7,677.81 and 2,194.71

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Solution

The fourth proportional to 5,122.59, 7,677.81 and 2,194.71 is: 3,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.59 : 7,677.81 = 2,194.71 : x
  2. Step 2: Convert to fraction form
    5,122.59/7,677.81 = 2,194.71/x
  3. Step 3: Cross multiply
    5,122.59x = 7,677.81 × 2,194.71
  4. Step 4: Simplify right side
    5,122.59x = 16,850,566.39
  5. Step 5: Solve for x
    x = 16,850,566.39/5,122.59
  6. Step 6: Final answer
    x = 3,289.46

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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.