Home / 2,222.28-3,066.35-1,277.85

Finding the Fourth Proportional to 2,222.28, 3,066.35 and 1,277.85

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Solution

The fourth proportional to 2,222.28, 3,066.35 and 1,277.85 is: 1,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.28 : 3,066.35 = 1,277.85 : x
  2. Step 2: Convert to fraction form
    2,222.28/3,066.35 = 1,277.85/x
  3. Step 3: Cross multiply
    2,222.28x = 3,066.35 × 1,277.85
  4. Step 4: Simplify right side
    2,222.28x = 3,918,328.96
  5. Step 5: Solve for x
    x = 3,918,328.96/2,222.28
  6. Step 6: Final answer
    x = 1,763.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.