Home / 3,897.36-5,369.28-2,716.56

Finding the Fourth Proportional to 3,897.36, 5,369.28 and 2,716.56

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Solution

The fourth proportional to 3,897.36, 5,369.28 and 2,716.56 is: 3,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.36 : 5,369.28 = 2,716.56 : x
  2. Step 2: Convert to fraction form
    3,897.36/5,369.28 = 2,716.56/x
  3. Step 3: Cross multiply
    3,897.36x = 5,369.28 × 2,716.56
  4. Step 4: Simplify right side
    3,897.36x = 14,585,971.28
  5. Step 5: Solve for x
    x = 14,585,971.28/3,897.36
  6. Step 6: Final answer
    x = 3,742.53

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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.