Home / 5,268.28-7,903.52-1,981.36

Finding the Fourth Proportional to 5,268.28, 7,903.52 and 1,981.36

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Solution

The fourth proportional to 5,268.28, 7,903.52 and 1,981.36 is: 2,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.28 : 7,903.52 = 1,981.36 : x
  2. Step 2: Convert to fraction form
    5,268.28/7,903.52 = 1,981.36/x
  3. Step 3: Cross multiply
    5,268.28x = 7,903.52 × 1,981.36
  4. Step 4: Simplify right side
    5,268.28x = 15,659,718.39
  5. Step 5: Solve for x
    x = 15,659,718.39/5,268.28
  6. Step 6: Final answer
    x = 2,972.45

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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.