Home / 5,402.73-8,104.79-2,115.41

Finding the Fourth Proportional to 5,402.73, 8,104.79 and 2,115.41

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Solution

The fourth proportional to 5,402.73, 8,104.79 and 2,115.41 is: 3,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.73 : 8,104.79 = 2,115.41 : x
  2. Step 2: Convert to fraction form
    5,402.73/8,104.79 = 2,115.41/x
  3. Step 3: Cross multiply
    5,402.73x = 8,104.79 × 2,115.41
  4. Step 4: Simplify right side
    5,402.73x = 17,144,953.81
  5. Step 5: Solve for x
    x = 17,144,953.81/5,402.73
  6. Step 6: Final answer
    x = 3,173.39

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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.