Home / 2,784.28-3,839.03-2,222.95

Finding the Fourth Proportional to 2,784.28, 3,839.03 and 2,222.95

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Solution

The fourth proportional to 2,784.28, 3,839.03 and 2,222.95 is: 3,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.28 : 3,839.03 = 2,222.95 : x
  2. Step 2: Convert to fraction form
    2,784.28/3,839.03 = 2,222.95/x
  3. Step 3: Cross multiply
    2,784.28x = 3,839.03 × 2,222.95
  4. Step 4: Simplify right side
    2,784.28x = 8,533,971.74
  5. Step 5: Solve for x
    x = 8,533,971.74/2,784.28
  6. Step 6: Final answer
    x = 3,065.06

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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.