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Finding the Fourth Proportional to 5,879.32, 8,818.43 and 1,983.76

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Solution

The fourth proportional to 5,879.32, 8,818.43 and 1,983.76 is: 2,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.32 : 8,818.43 = 1,983.76 : x
  2. Step 2: Convert to fraction form
    5,879.32/8,818.43 = 1,983.76/x
  3. Step 3: Cross multiply
    5,879.32x = 8,818.43 × 1,983.76
  4. Step 4: Simplify right side
    5,879.32x = 17,493,609.56
  5. Step 5: Solve for x
    x = 17,493,609.56/5,879.32
  6. Step 6: Final answer
    x = 2,975.45

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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.