Home / 5,703.91-7,871.31-3,186.06

Finding the Fourth Proportional to 5,703.91, 7,871.31 and 3,186.06

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Solution

The fourth proportional to 5,703.91, 7,871.31 and 3,186.06 is: 4,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.91 : 7,871.31 = 3,186.06 : x
  2. Step 2: Convert to fraction form
    5,703.91/7,871.31 = 3,186.06/x
  3. Step 3: Cross multiply
    5,703.91x = 7,871.31 × 3,186.06
  4. Step 4: Simplify right side
    5,703.91x = 25,078,454.23
  5. Step 5: Solve for x
    x = 25,078,454.23/5,703.91
  6. Step 6: Final answer
    x = 4,396.71

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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.