Home / 5,380.95-8,072.19-2,605.34

Finding the Fourth Proportional to 5,380.95, 8,072.19 and 2,605.34

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Solution

The fourth proportional to 5,380.95, 8,072.19 and 2,605.34 is: 3,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.95 : 8,072.19 = 2,605.34 : x
  2. Step 2: Convert to fraction form
    5,380.95/8,072.19 = 2,605.34/x
  3. Step 3: Cross multiply
    5,380.95x = 8,072.19 × 2,605.34
  4. Step 4: Simplify right side
    5,380.95x = 21,030,799.49
  5. Step 5: Solve for x
    x = 21,030,799.49/5,380.95
  6. Step 6: Final answer
    x = 3,908.38

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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.