Home / 2,001.12-3,001.23-540.39

Finding the Fourth Proportional to 2,001.12, 3,001.23 and 540.39

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Solution

The fourth proportional to 2,001.12, 3,001.23 and 540.39 is: 810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.12 : 3,001.23 = 540.39 : x
  2. Step 2: Convert to fraction form
    2,001.12/3,001.23 = 540.39/x
  3. Step 3: Cross multiply
    2,001.12x = 3,001.23 × 540.39
  4. Step 4: Simplify right side
    2,001.12x = 1,621,831.98
  5. Step 5: Solve for x
    x = 1,621,831.98/2,001.12
  6. Step 6: Final answer
    x = 810.46

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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.