Home / 5,398.15-8,078.94-3,319.47

Finding the Fourth Proportional to 5,398.15, 8,078.94 and 3,319.47

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Solution

The fourth proportional to 5,398.15, 8,078.94 and 3,319.47 is: 4,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.15 : 8,078.94 = 3,319.47 : x
  2. Step 2: Convert to fraction form
    5,398.15/8,078.94 = 3,319.47/x
  3. Step 3: Cross multiply
    5,398.15x = 8,078.94 × 3,319.47
  4. Step 4: Simplify right side
    5,398.15x = 26,817,815.01
  5. Step 5: Solve for x
    x = 26,817,815.01/5,398.15
  6. Step 6: Final answer
    x = 4,967.96

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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.