Home / 5,218.84-7,202.61-2,981.04

Finding the Fourth Proportional to 5,218.84, 7,202.61 and 2,981.04

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Solution

The fourth proportional to 5,218.84, 7,202.61 and 2,981.04 is: 4,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.84 : 7,202.61 = 2,981.04 : x
  2. Step 2: Convert to fraction form
    5,218.84/7,202.61 = 2,981.04/x
  3. Step 3: Cross multiply
    5,218.84x = 7,202.61 × 2,981.04
  4. Step 4: Simplify right side
    5,218.84x = 21,471,268.51
  5. Step 5: Solve for x
    x = 21,471,268.51/5,218.84
  6. Step 6: Final answer
    x = 4,114.18

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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.