Home / 5,228.43-7,842.90-2,108.02

Finding the Fourth Proportional to 5,228.43, 7,842.90 and 2,108.02

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Solution

The fourth proportional to 5,228.43, 7,842.90 and 2,108.02 is: 3,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.43 : 7,842.90 = 2,108.02 : x
  2. Step 2: Convert to fraction form
    5,228.43/7,842.90 = 2,108.02/x
  3. Step 3: Cross multiply
    5,228.43x = 7,842.90 × 2,108.02
  4. Step 4: Simplify right side
    5,228.43x = 16,532,990.06
  5. Step 5: Solve for x
    x = 16,532,990.06/5,228.43
  6. Step 6: Final answer
    x = 3,162.13

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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.