Home / 5,268.71-7,902.16-1,981.83

Finding the Fourth Proportional to 5,268.71, 7,902.16 and 1,981.83

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Solution

The fourth proportional to 5,268.71, 7,902.16 and 1,981.83 is: 2,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.71 : 7,902.16 = 1,981.83 : x
  2. Step 2: Convert to fraction form
    5,268.71/7,902.16 = 1,981.83/x
  3. Step 3: Cross multiply
    5,268.71x = 7,902.16 × 1,981.83
  4. Step 4: Simplify right side
    5,268.71x = 15,660,762.43
  5. Step 5: Solve for x
    x = 15,660,762.43/5,268.71
  6. Step 6: Final answer
    x = 2,972.41

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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.