Home / 2,231.59-3,347.39-1,212.07

Finding the Fourth Proportional to 2,231.59, 3,347.39 and 1,212.07

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Solution

The fourth proportional to 2,231.59, 3,347.39 and 1,212.07 is: 1,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.59 : 3,347.39 = 1,212.07 : x
  2. Step 2: Convert to fraction form
    2,231.59/3,347.39 = 1,212.07/x
  3. Step 3: Cross multiply
    2,231.59x = 3,347.39 × 1,212.07
  4. Step 4: Simplify right side
    2,231.59x = 4,057,271.00
  5. Step 5: Solve for x
    x = 4,057,271.00/2,231.59
  6. Step 6: Final answer
    x = 1,818.11

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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.