Home / 2,212.22-3,316.72-1,117.36

Finding the Fourth Proportional to 2,212.22, 3,316.72 and 1,117.36

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Solution

The fourth proportional to 2,212.22, 3,316.72 and 1,117.36 is: 1,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.22 : 3,316.72 = 1,117.36 : x
  2. Step 2: Convert to fraction form
    2,212.22/3,316.72 = 1,117.36/x
  3. Step 3: Cross multiply
    2,212.22x = 3,316.72 × 1,117.36
  4. Step 4: Simplify right side
    2,212.22x = 3,705,964.67
  5. Step 5: Solve for x
    x = 3,705,964.67/2,212.22
  6. Step 6: Final answer
    x = 1,675.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.