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Finding the Fourth Proportional to 5,342.81, 8,013.41 and 1,879.25

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Solution

The fourth proportional to 5,342.81, 8,013.41 and 1,879.25 is: 2,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.81 : 8,013.41 = 1,879.25 : x
  2. Step 2: Convert to fraction form
    5,342.81/8,013.41 = 1,879.25/x
  3. Step 3: Cross multiply
    5,342.81x = 8,013.41 × 1,879.25
  4. Step 4: Simplify right side
    5,342.81x = 15,059,191.35
  5. Step 5: Solve for x
    x = 15,059,191.35/5,342.81
  6. Step 6: Final answer
    x = 2,818.59

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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.