Home / 2,226.02-3,071.74-1,231.20

Finding the Fourth Proportional to 2,226.02, 3,071.74 and 1,231.20

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Solution

The fourth proportional to 2,226.02, 3,071.74 and 1,231.20 is: 1,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.02 : 3,071.74 = 1,231.20 : x
  2. Step 2: Convert to fraction form
    2,226.02/3,071.74 = 1,231.20/x
  3. Step 3: Cross multiply
    2,226.02x = 3,071.74 × 1,231.20
  4. Step 4: Simplify right side
    2,226.02x = 3,781,926.29
  5. Step 5: Solve for x
    x = 3,781,926.29/2,226.02
  6. Step 6: Final answer
    x = 1,698.96

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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.