Home / 5,161.93-7,123.58-3,171.34

Finding the Fourth Proportional to 5,161.93, 7,123.58 and 3,171.34

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Solution

The fourth proportional to 5,161.93, 7,123.58 and 3,171.34 is: 4,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.93 : 7,123.58 = 3,171.34 : x
  2. Step 2: Convert to fraction form
    5,161.93/7,123.58 = 3,171.34/x
  3. Step 3: Cross multiply
    5,161.93x = 7,123.58 × 3,171.34
  4. Step 4: Simplify right side
    5,161.93x = 22,591,294.20
  5. Step 5: Solve for x
    x = 22,591,294.20/5,161.93
  6. Step 6: Final answer
    x = 4,376.52

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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.