Home / 5,188.40-7,158.66-3,512.96

Finding the Fourth Proportional to 5,188.40, 7,158.66 and 3,512.96

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Solution

The fourth proportional to 5,188.40, 7,158.66 and 3,512.96 is: 4,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.40 : 7,158.66 = 3,512.96 : x
  2. Step 2: Convert to fraction form
    5,188.40/7,158.66 = 3,512.96/x
  3. Step 3: Cross multiply
    5,188.40x = 7,158.66 × 3,512.96
  4. Step 4: Simplify right side
    5,188.40x = 25,148,086.23
  5. Step 5: Solve for x
    x = 25,148,086.23/5,188.40
  6. Step 6: Final answer
    x = 4,846.98

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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.