Home / 2,006.00-3,009.40-1,421.21

Finding the Fourth Proportional to 2,006.00, 3,009.40 and 1,421.21

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Solution

The fourth proportional to 2,006.00, 3,009.40 and 1,421.21 is: 2,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.00 : 3,009.40 = 1,421.21 : x
  2. Step 2: Convert to fraction form
    2,006.00/3,009.40 = 1,421.21/x
  3. Step 3: Cross multiply
    2,006.00x = 3,009.40 × 1,421.21
  4. Step 4: Simplify right side
    2,006.00x = 4,276,988.64
  5. Step 5: Solve for x
    x = 4,276,988.64/2,006.00
  6. Step 6: Final answer
    x = 2,132.09

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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.