Home / 5,268.25-7,903.18-1,981.57

Finding the Fourth Proportional to 5,268.25, 7,903.18 and 1,981.57

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Solution

The fourth proportional to 5,268.25, 7,903.18 and 1,981.57 is: 2,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.25 : 7,903.18 = 1,981.57 : x
  2. Step 2: Convert to fraction form
    5,268.25/7,903.18 = 1,981.57/x
  3. Step 3: Cross multiply
    5,268.25x = 7,903.18 × 1,981.57
  4. Step 4: Simplify right side
    5,268.25x = 15,660,704.39
  5. Step 5: Solve for x
    x = 15,660,704.39/5,268.25
  6. Step 6: Final answer
    x = 2,972.66

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1.5x scale

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.