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Finding the Fourth Proportional to 5,939.16, 8,910.90 and 2,820.12

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Solution

The fourth proportional to 5,939.16, 8,910.90 and 2,820.12 is: 4,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.16 : 8,910.90 = 2,820.12 : x
  2. Step 2: Convert to fraction form
    5,939.16/8,910.90 = 2,820.12/x
  3. Step 3: Cross multiply
    5,939.16x = 8,910.90 × 2,820.12
  4. Step 4: Simplify right side
    5,939.16x = 25,129,807.31
  5. Step 5: Solve for x
    x = 25,129,807.31/5,939.16
  6. Step 6: Final answer
    x = 4,231.21

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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.