Home / 7,176.81-10,765.84-1,982.69

Finding the Fourth Proportional to 7,176.81, 10,765.84 and 1,982.69

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Solution

The fourth proportional to 7,176.81, 10,765.84 and 1,982.69 is: 2,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.81 : 10,765.84 = 1,982.69 : x
  2. Step 2: Convert to fraction form
    7,176.81/10,765.84 = 1,982.69/x
  3. Step 3: Cross multiply
    7,176.81x = 10,765.84 × 1,982.69
  4. Step 4: Simplify right side
    7,176.81x = 21,345,323.31
  5. Step 5: Solve for x
    x = 21,345,323.31/7,176.81
  6. Step 6: Final answer
    x = 2,974.21

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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.