Home / 5,398.75-8,079.84-3,320.07

Finding the Fourth Proportional to 5,398.75, 8,079.84 and 3,320.07

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Solution

The fourth proportional to 5,398.75, 8,079.84 and 3,320.07 is: 4,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.75 : 8,079.84 = 3,320.07 : x
  2. Step 2: Convert to fraction form
    5,398.75/8,079.84 = 3,320.07/x
  3. Step 3: Cross multiply
    5,398.75x = 8,079.84 × 3,320.07
  4. Step 4: Simplify right side
    5,398.75x = 26,825,617.79
  5. Step 5: Solve for x
    x = 26,825,617.79/5,398.75
  6. Step 6: Final answer
    x = 4,968.86

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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.