Home / 4,007.89-5,530.78-2,215.49

Finding the Fourth Proportional to 4,007.89, 5,530.78 and 2,215.49

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Solution

The fourth proportional to 4,007.89, 5,530.78 and 2,215.49 is: 3,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,007.89 : 5,530.78 = 2,215.49 : x
  2. Step 2: Convert to fraction form
    4,007.89/5,530.78 = 2,215.49/x
  3. Step 3: Cross multiply
    4,007.89x = 5,530.78 × 2,215.49
  4. Step 4: Simplify right side
    4,007.89x = 12,253,376.70
  5. Step 5: Solve for x
    x = 12,253,376.70/4,007.89
  6. Step 6: Final answer
    x = 3,057.32

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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.