Home / 5,191.71-7,163.88-2,953.11

Finding the Fourth Proportional to 5,191.71, 7,163.88 and 2,953.11

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Solution

The fourth proportional to 5,191.71, 7,163.88 and 2,953.11 is: 4,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.71 : 7,163.88 = 2,953.11 : x
  2. Step 2: Convert to fraction form
    5,191.71/7,163.88 = 2,953.11/x
  3. Step 3: Cross multiply
    5,191.71x = 7,163.88 × 2,953.11
  4. Step 4: Simplify right side
    5,191.71x = 21,155,725.67
  5. Step 5: Solve for x
    x = 21,155,725.67/5,191.71
  6. Step 6: Final answer
    x = 4,074.91

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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.