Home / 5,397.09-7,447.51-3,981.54

Finding the Fourth Proportional to 5,397.09, 7,447.51 and 3,981.54

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Solution

The fourth proportional to 5,397.09, 7,447.51 and 3,981.54 is: 5,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.09 : 7,447.51 = 3,981.54 : x
  2. Step 2: Convert to fraction form
    5,397.09/7,447.51 = 3,981.54/x
  3. Step 3: Cross multiply
    5,397.09x = 7,447.51 × 3,981.54
  4. Step 4: Simplify right side
    5,397.09x = 29,652,558.97
  5. Step 5: Solve for x
    x = 29,652,558.97/5,397.09
  6. Step 6: Final answer
    x = 5,494.18

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1.5x scale

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.