Home / 2,231.81-3,345.23-1,133.91

Finding the Fourth Proportional to 2,231.81, 3,345.23 and 1,133.91

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Solution

The fourth proportional to 2,231.81, 3,345.23 and 1,133.91 is: 1,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.81 : 3,345.23 = 1,133.91 : x
  2. Step 2: Convert to fraction form
    2,231.81/3,345.23 = 1,133.91/x
  3. Step 3: Cross multiply
    2,231.81x = 3,345.23 × 1,133.91
  4. Step 4: Simplify right side
    2,231.81x = 3,793,189.75
  5. Step 5: Solve for x
    x = 3,793,189.75/2,231.81
  6. Step 6: Final answer
    x = 1,699.60

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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.