Home / 2,226.22-3,073.30-1,387.20

Finding the Fourth Proportional to 2,226.22, 3,073.30 and 1,387.20

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Solution

The fourth proportional to 2,226.22, 3,073.30 and 1,387.20 is: 1,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.22 : 3,073.30 = 1,387.20 : x
  2. Step 2: Convert to fraction form
    2,226.22/3,073.30 = 1,387.20/x
  3. Step 3: Cross multiply
    2,226.22x = 3,073.30 × 1,387.20
  4. Step 4: Simplify right side
    2,226.22x = 4,263,281.76
  5. Step 5: Solve for x
    x = 4,263,281.76/2,226.22
  6. Step 6: Final answer
    x = 1,915.03

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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.