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Finding the Fourth Proportional to 5,319.08, 7,978.62 and 2,393.97

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Solution

The fourth proportional to 5,319.08, 7,978.62 and 2,393.97 is: 3,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.08 : 7,978.62 = 2,393.97 : x
  2. Step 2: Convert to fraction form
    5,319.08/7,978.62 = 2,393.97/x
  3. Step 3: Cross multiply
    5,319.08x = 7,978.62 × 2,393.97
  4. Step 4: Simplify right side
    5,319.08x = 19,100,576.92
  5. Step 5: Solve for x
    x = 19,100,576.92/5,319.08
  6. Step 6: Final answer
    x = 3,590.95

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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.