Home / 2,719.50-3,752.22-2,221.35

Finding the Fourth Proportional to 2,719.50, 3,752.22 and 2,221.35

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Solution

The fourth proportional to 2,719.50, 3,752.22 and 2,221.35 is: 3,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.50 : 3,752.22 = 2,221.35 : x
  2. Step 2: Convert to fraction form
    2,719.50/3,752.22 = 2,221.35/x
  3. Step 3: Cross multiply
    2,719.50x = 3,752.22 × 2,221.35
  4. Step 4: Simplify right side
    2,719.50x = 8,334,993.90
  5. Step 5: Solve for x
    x = 8,334,993.90/2,719.50
  6. Step 6: Final answer
    x = 3,064.90

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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.