Home / 7,177.70-10,766.76-1,983.58

Finding the Fourth Proportional to 7,177.70, 10,766.76 and 1,983.58

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Solution

The fourth proportional to 7,177.70, 10,766.76 and 1,983.58 is: 2,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.70 : 10,766.76 = 1,983.58 : x
  2. Step 2: Convert to fraction form
    7,177.70/10,766.76 = 1,983.58/x
  3. Step 3: Cross multiply
    7,177.70x = 10,766.76 × 1,983.58
  4. Step 4: Simplify right side
    7,177.70x = 21,356,695.45
  5. Step 5: Solve for x
    x = 21,356,695.45/7,177.70
  6. Step 6: Final answer
    x = 2,975.42

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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.