Home / 3,162.65-4,363.88-2,221.31

Finding the Fourth Proportional to 3,162.65, 4,363.88 and 2,221.31

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Solution

The fourth proportional to 3,162.65, 4,363.88 and 2,221.31 is: 3,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.65 : 4,363.88 = 2,221.31 : x
  2. Step 2: Convert to fraction form
    3,162.65/4,363.88 = 2,221.31/x
  3. Step 3: Cross multiply
    3,162.65x = 4,363.88 × 2,221.31
  4. Step 4: Simplify right side
    3,162.65x = 9,693,530.09
  5. Step 5: Solve for x
    x = 9,693,530.09/3,162.65
  6. Step 6: Final answer
    x = 3,065.01

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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.