Home / 2,001.20-3,001.80-1,384.73

Finding the Fourth Proportional to 2,001.20, 3,001.80 and 1,384.73

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Solution

The fourth proportional to 2,001.20, 3,001.80 and 1,384.73 is: 2,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.20 : 3,001.80 = 1,384.73 : x
  2. Step 2: Convert to fraction form
    2,001.20/3,001.80 = 1,384.73/x
  3. Step 3: Cross multiply
    2,001.20x = 3,001.80 × 1,384.73
  4. Step 4: Simplify right side
    2,001.20x = 4,156,682.51
  5. Step 5: Solve for x
    x = 4,156,682.51/2,001.20
  6. Step 6: Final answer
    x = 2,077.10

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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.