Home / 2,220.23-3,063.92-1,212.01

Finding the Fourth Proportional to 2,220.23, 3,063.92 and 1,212.01

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Solution

The fourth proportional to 2,220.23, 3,063.92 and 1,212.01 is: 1,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.23 : 3,063.92 = 1,212.01 : x
  2. Step 2: Convert to fraction form
    2,220.23/3,063.92 = 1,212.01/x
  3. Step 3: Cross multiply
    2,220.23x = 3,063.92 × 1,212.01
  4. Step 4: Simplify right side
    2,220.23x = 3,713,487.96
  5. Step 5: Solve for x
    x = 3,713,487.96/2,220.23
  6. Step 6: Final answer
    x = 1,672.57

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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.