Home / 7,107.74-10,661.63-2,489.66

Finding the Fourth Proportional to 7,107.74, 10,661.63 and 2,489.66

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Solution

The fourth proportional to 7,107.74, 10,661.63 and 2,489.66 is: 3,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.74 : 10,661.63 = 2,489.66 : x
  2. Step 2: Convert to fraction form
    7,107.74/10,661.63 = 2,489.66/x
  3. Step 3: Cross multiply
    7,107.74x = 10,661.63 × 2,489.66
  4. Step 4: Simplify right side
    7,107.74x = 26,543,833.75
  5. Step 5: Solve for x
    x = 26,543,833.75/7,107.74
  6. Step 6: Final answer
    x = 3,734.50

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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.