Home / 2,150.96-3,226.40-670.20

Finding the Fourth Proportional to 2,150.96, 3,226.40 and 670.20

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Solution

The fourth proportional to 2,150.96, 3,226.40 and 670.20 is: 1,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.96 : 3,226.40 = 670.20 : x
  2. Step 2: Convert to fraction form
    2,150.96/3,226.40 = 670.20/x
  3. Step 3: Cross multiply
    2,150.96x = 3,226.40 × 670.20
  4. Step 4: Simplify right side
    2,150.96x = 2,162,333.28
  5. Step 5: Solve for x
    x = 2,162,333.28/2,150.96
  6. Step 6: Final answer
    x = 1,005.29

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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.