Home / 5,318.71-7,340.25-2,961.03

Finding the Fourth Proportional to 5,318.71, 7,340.25 and 2,961.03

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Solution

The fourth proportional to 5,318.71, 7,340.25 and 2,961.03 is: 4,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.71 : 7,340.25 = 2,961.03 : x
  2. Step 2: Convert to fraction form
    5,318.71/7,340.25 = 2,961.03/x
  3. Step 3: Cross multiply
    5,318.71x = 7,340.25 × 2,961.03
  4. Step 4: Simplify right side
    5,318.71x = 21,734,700.46
  5. Step 5: Solve for x
    x = 21,734,700.46/5,318.71
  6. Step 6: Final answer
    x = 4,086.46

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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.