Home / 2,212.10-3,057.09-1,769.30

Finding the Fourth Proportional to 2,212.10, 3,057.09 and 1,769.30

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Solution

The fourth proportional to 2,212.10, 3,057.09 and 1,769.30 is: 2,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.10 : 3,057.09 = 1,769.30 : x
  2. Step 2: Convert to fraction form
    2,212.10/3,057.09 = 1,769.30/x
  3. Step 3: Cross multiply
    2,212.10x = 3,057.09 × 1,769.30
  4. Step 4: Simplify right side
    2,212.10x = 5,408,909.34
  5. Step 5: Solve for x
    x = 5,408,909.34/2,212.10
  6. Step 6: Final answer
    x = 2,445.15

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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.