Home / 5,715.11-7,886.81-3,197.43

Finding the Fourth Proportional to 5,715.11, 7,886.81 and 3,197.43

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Solution

The fourth proportional to 5,715.11, 7,886.81 and 3,197.43 is: 4,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.11 : 7,886.81 = 3,197.43 : x
  2. Step 2: Convert to fraction form
    5,715.11/7,886.81 = 3,197.43/x
  3. Step 3: Cross multiply
    5,715.11x = 7,886.81 × 3,197.43
  4. Step 4: Simplify right side
    5,715.11x = 25,217,506.91
  5. Step 5: Solve for x
    x = 25,217,506.91/5,715.11
  6. Step 6: Final answer
    x = 4,412.43

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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.