Home / 6,815.70-10,220.84-2,655.14

Finding the Fourth Proportional to 6,815.70, 10,220.84 and 2,655.14

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Solution

The fourth proportional to 6,815.70, 10,220.84 and 2,655.14 is: 3,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.70 : 10,220.84 = 2,655.14 : x
  2. Step 2: Convert to fraction form
    6,815.70/10,220.84 = 2,655.14/x
  3. Step 3: Cross multiply
    6,815.70x = 10,220.84 × 2,655.14
  4. Step 4: Simplify right side
    6,815.70x = 27,137,761.12
  5. Step 5: Solve for x
    x = 27,137,761.12/6,815.70
  6. Step 6: Final answer
    x = 3,981.65

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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.