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Finding the Fourth Proportional to 5,079.51, 7,619.13 and 2,001.51

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Solution

The fourth proportional to 5,079.51, 7,619.13 and 2,001.51 is: 3,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.51 : 7,619.13 = 2,001.51 : x
  2. Step 2: Convert to fraction form
    5,079.51/7,619.13 = 2,001.51/x
  3. Step 3: Cross multiply
    5,079.51x = 7,619.13 × 2,001.51
  4. Step 4: Simplify right side
    5,079.51x = 15,249,764.89
  5. Step 5: Solve for x
    x = 15,249,764.89/5,079.51
  6. Step 6: Final answer
    x = 3,002.21

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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.