Home / 5,209.68-7,190.04-2,972.36

Finding the Fourth Proportional to 5,209.68, 7,190.04 and 2,972.36

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Solution

The fourth proportional to 5,209.68, 7,190.04 and 2,972.36 is: 4,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.68 : 7,190.04 = 2,972.36 : x
  2. Step 2: Convert to fraction form
    5,209.68/7,190.04 = 2,972.36/x
  3. Step 3: Cross multiply
    5,209.68x = 7,190.04 × 2,972.36
  4. Step 4: Simplify right side
    5,209.68x = 21,371,387.29
  5. Step 5: Solve for x
    x = 21,371,387.29/5,209.68
  6. Step 6: Final answer
    x = 4,102.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.