Home / 5,715.10-7,886.46-3,196.77

Finding the Fourth Proportional to 5,715.10, 7,886.46 and 3,196.77

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Solution

The fourth proportional to 5,715.10, 7,886.46 and 3,196.77 is: 4,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.10 : 7,886.46 = 3,196.77 : x
  2. Step 2: Convert to fraction form
    5,715.10/7,886.46 = 3,196.77/x
  3. Step 3: Cross multiply
    5,715.10x = 7,886.46 × 3,196.77
  4. Step 4: Simplify right side
    5,715.10x = 25,211,198.73
  5. Step 5: Solve for x
    x = 25,211,198.73/5,715.10
  6. Step 6: Final answer
    x = 4,411.34

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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.