Home / 5,187.96-7,157.06-3,197.79

Finding the Fourth Proportional to 5,187.96, 7,157.06 and 3,197.79

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Solution

The fourth proportional to 5,187.96, 7,157.06 and 3,197.79 is: 4,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.96 : 7,157.06 = 3,197.79 : x
  2. Step 2: Convert to fraction form
    5,187.96/7,157.06 = 3,197.79/x
  3. Step 3: Cross multiply
    5,187.96x = 7,157.06 × 3,197.79
  4. Step 4: Simplify right side
    5,187.96x = 22,886,739.11
  5. Step 5: Solve for x
    x = 22,886,739.11/5,187.96
  6. Step 6: Final answer
    x = 4,411.51

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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.