Home / 2,775.75-4,166.48-2,166.12

Finding the Fourth Proportional to 2,775.75, 4,166.48 and 2,166.12

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Solution

The fourth proportional to 2,775.75, 4,166.48 and 2,166.12 is: 3,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.75 : 4,166.48 = 2,166.12 : x
  2. Step 2: Convert to fraction form
    2,775.75/4,166.48 = 2,166.12/x
  3. Step 3: Cross multiply
    2,775.75x = 4,166.48 × 2,166.12
  4. Step 4: Simplify right side
    2,775.75x = 9,025,084.83
  5. Step 5: Solve for x
    x = 9,025,084.83/2,775.75
  6. Step 6: Final answer
    x = 3,251.40

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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.