Home / 2,982.24-4,117.68-2,761.08

Finding the Fourth Proportional to 2,982.24, 4,117.68 and 2,761.08

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Solution

The fourth proportional to 2,982.24, 4,117.68 and 2,761.08 is: 3,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.24 : 4,117.68 = 2,761.08 : x
  2. Step 2: Convert to fraction form
    2,982.24/4,117.68 = 2,761.08/x
  3. Step 3: Cross multiply
    2,982.24x = 4,117.68 × 2,761.08
  4. Step 4: Simplify right side
    2,982.24x = 11,369,243.89
  5. Step 5: Solve for x
    x = 11,369,243.89/2,982.24
  6. Step 6: Final answer
    x = 3,812.32

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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.