Home / 2,720.61-4,078.35-2,228.13

Finding the Fourth Proportional to 2,720.61, 4,078.35 and 2,228.13

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Solution

The fourth proportional to 2,720.61, 4,078.35 and 2,228.13 is: 3,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.61 : 4,078.35 = 2,228.13 : x
  2. Step 2: Convert to fraction form
    2,720.61/4,078.35 = 2,228.13/x
  3. Step 3: Cross multiply
    2,720.61x = 4,078.35 × 2,228.13
  4. Step 4: Simplify right side
    2,720.61x = 9,087,093.99
  5. Step 5: Solve for x
    x = 9,087,093.99/2,720.61
  6. Step 6: Final answer
    x = 3,340.09

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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.