Home / 4,069.70-5,615.88-2,745.20

Finding the Fourth Proportional to 4,069.70, 5,615.88 and 2,745.20

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Solution

The fourth proportional to 4,069.70, 5,615.88 and 2,745.20 is: 3,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.70 : 5,615.88 = 2,745.20 : x
  2. Step 2: Convert to fraction form
    4,069.70/5,615.88 = 2,745.20/x
  3. Step 3: Cross multiply
    4,069.70x = 5,615.88 × 2,745.20
  4. Step 4: Simplify right side
    4,069.70x = 15,416,713.78
  5. Step 5: Solve for x
    x = 15,416,713.78/4,069.70
  6. Step 6: Final answer
    x = 3,788.17

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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.