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Finding the Fourth Proportional to 5,305.57, 7,961.81 and 2,018.69

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Solution

The fourth proportional to 5,305.57, 7,961.81 and 2,018.69 is: 3,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.57 : 7,961.81 = 2,018.69 : x
  2. Step 2: Convert to fraction form
    5,305.57/7,961.81 = 2,018.69/x
  3. Step 3: Cross multiply
    5,305.57x = 7,961.81 × 2,018.69
  4. Step 4: Simplify right side
    5,305.57x = 16,072,426.23
  5. Step 5: Solve for x
    x = 16,072,426.23/5,305.57
  6. Step 6: Final answer
    x = 3,029.35

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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.