Home / 5,391.63-8,086.50-2,104.79

Finding the Fourth Proportional to 5,391.63, 8,086.50 and 2,104.79

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Solution

The fourth proportional to 5,391.63, 8,086.50 and 2,104.79 is: 3,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.63 : 8,086.50 = 2,104.79 : x
  2. Step 2: Convert to fraction form
    5,391.63/8,086.50 = 2,104.79/x
  3. Step 3: Cross multiply
    5,391.63x = 8,086.50 × 2,104.79
  4. Step 4: Simplify right side
    5,391.63x = 17,020,343.90
  5. Step 5: Solve for x
    x = 17,020,343.90/5,391.63
  6. Step 6: Final answer
    x = 3,156.81

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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.