Home / 5,157.36-7,118.28-3,168.96

Finding the Fourth Proportional to 5,157.36, 7,118.28 and 3,168.96

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Solution

The fourth proportional to 5,157.36, 7,118.28 and 3,168.96 is: 4,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.36 : 7,118.28 = 3,168.96 : x
  2. Step 2: Convert to fraction form
    5,157.36/7,118.28 = 3,168.96/x
  3. Step 3: Cross multiply
    5,157.36x = 7,118.28 × 3,168.96
  4. Step 4: Simplify right side
    5,157.36x = 22,557,544.59
  5. Step 5: Solve for x
    x = 22,557,544.59/5,157.36
  6. Step 6: Final answer
    x = 4,373.85

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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.