Home / 7,177.92-10,765.67-1,983.80

Finding the Fourth Proportional to 7,177.92, 10,765.67 and 1,983.80

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Solution

The fourth proportional to 7,177.92, 10,765.67 and 1,983.80 is: 2,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.92 : 10,765.67 = 1,983.80 : x
  2. Step 2: Convert to fraction form
    7,177.92/10,765.67 = 1,983.80/x
  3. Step 3: Cross multiply
    7,177.92x = 10,765.67 × 1,983.80
  4. Step 4: Simplify right side
    7,177.92x = 21,356,872.40
  5. Step 5: Solve for x
    x = 21,356,872.40/7,177.92
  6. Step 6: Final answer
    x = 2,975.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.