Home / 7,131.56-9,841.25-3,944.63

Finding the Fourth Proportional to 7,131.56, 9,841.25 and 3,944.63

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Solution

The fourth proportional to 7,131.56, 9,841.25 and 3,944.63 is: 5,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.56 : 9,841.25 = 3,944.63 : x
  2. Step 2: Convert to fraction form
    7,131.56/9,841.25 = 3,944.63/x
  3. Step 3: Cross multiply
    7,131.56x = 9,841.25 × 3,944.63
  4. Step 4: Simplify right side
    7,131.56x = 38,820,124.45
  5. Step 5: Solve for x
    x = 38,820,124.45/7,131.56
  6. Step 6: Final answer
    x = 5,443.43

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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.