Home / 7,081.07-9,771.39-3,937.28

Finding the Fourth Proportional to 7,081.07, 9,771.39 and 3,937.28

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Solution

The fourth proportional to 7,081.07, 9,771.39 and 3,937.28 is: 5,433.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.07 : 9,771.39 = 3,937.28 : x
  2. Step 2: Convert to fraction form
    7,081.07/9,771.39 = 3,937.28/x
  3. Step 3: Cross multiply
    7,081.07x = 9,771.39 × 3,937.28
  4. Step 4: Simplify right side
    7,081.07x = 38,472,649.56
  5. Step 5: Solve for x
    x = 38,472,649.56/7,081.07
  6. Step 6: Final answer
    x = 5,433.17

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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.