Home / 7,131.19-9,841.21-3,944.70

Finding the Fourth Proportional to 7,131.19, 9,841.21 and 3,944.70

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Solution

The fourth proportional to 7,131.19, 9,841.21 and 3,944.70 is: 5,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.19 : 9,841.21 = 3,944.70 : x
  2. Step 2: Convert to fraction form
    7,131.19/9,841.21 = 3,944.70/x
  3. Step 3: Cross multiply
    7,131.19x = 9,841.21 × 3,944.70
  4. Step 4: Simplify right side
    7,131.19x = 38,820,552.16
  5. Step 5: Solve for x
    x = 38,820,552.16/7,131.19
  6. Step 6: Final answer
    x = 5,443.77

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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.