Home / 5,715.92-7,886.22-3,725.75

Finding the Fourth Proportional to 5,715.92, 7,886.22 and 3,725.75

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Solution

The fourth proportional to 5,715.92, 7,886.22 and 3,725.75 is: 5,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.92 : 7,886.22 = 3,725.75 : x
  2. Step 2: Convert to fraction form
    5,715.92/7,886.22 = 3,725.75/x
  3. Step 3: Cross multiply
    5,715.92x = 7,886.22 × 3,725.75
  4. Step 4: Simplify right side
    5,715.92x = 29,382,084.17
  5. Step 5: Solve for x
    x = 29,382,084.17/5,715.92
  6. Step 6: Final answer
    x = 5,140.39

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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.