Home / 5,227.80-7,838.58-2,109.24

Finding the Fourth Proportional to 5,227.80, 7,838.58 and 2,109.24

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Solution

The fourth proportional to 5,227.80, 7,838.58 and 2,109.24 is: 3,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.80 : 7,838.58 = 2,109.24 : x
  2. Step 2: Convert to fraction form
    5,227.80/7,838.58 = 2,109.24/x
  3. Step 3: Cross multiply
    5,227.80x = 7,838.58 × 2,109.24
  4. Step 4: Simplify right side
    5,227.80x = 16,533,446.48
  5. Step 5: Solve for x
    x = 16,533,446.48/5,227.80
  6. Step 6: Final answer
    x = 3,162.60

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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.