Home / 6,821.92-10,220.52-3,127.24

Finding the Fourth Proportional to 6,821.92, 10,220.52 and 3,127.24

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Solution

The fourth proportional to 6,821.92, 10,220.52 and 3,127.24 is: 4,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.92 : 10,220.52 = 3,127.24 : x
  2. Step 2: Convert to fraction form
    6,821.92/10,220.52 = 3,127.24/x
  3. Step 3: Cross multiply
    6,821.92x = 10,220.52 × 3,127.24
  4. Step 4: Simplify right side
    6,821.92x = 31,962,018.96
  5. Step 5: Solve for x
    x = 31,962,018.96/6,821.92
  6. Step 6: Final answer
    x = 4,685.19

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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.