Home / 4,109.65-5,671.32-2,221.24

Finding the Fourth Proportional to 4,109.65, 5,671.32 and 2,221.24

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Solution

The fourth proportional to 4,109.65, 5,671.32 and 2,221.24 is: 3,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.65 : 5,671.32 = 2,221.24 : x
  2. Step 2: Convert to fraction form
    4,109.65/5,671.32 = 2,221.24/x
  3. Step 3: Cross multiply
    4,109.65x = 5,671.32 × 2,221.24
  4. Step 4: Simplify right side
    4,109.65x = 12,597,362.84
  5. Step 5: Solve for x
    x = 12,597,362.84/4,109.65
  6. Step 6: Final answer
    x = 3,065.31

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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.