Home / 5,396.18-7,447.72-3,157.92

Finding the Fourth Proportional to 5,396.18, 7,447.72 and 3,157.92

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Solution

The fourth proportional to 5,396.18, 7,447.72 and 3,157.92 is: 4,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.18 : 7,447.72 = 3,157.92 : x
  2. Step 2: Convert to fraction form
    5,396.18/7,447.72 = 3,157.92/x
  3. Step 3: Cross multiply
    5,396.18x = 7,447.72 × 3,157.92
  4. Step 4: Simplify right side
    5,396.18x = 23,519,303.94
  5. Step 5: Solve for x
    x = 23,519,303.94/5,396.18
  6. Step 6: Final answer
    x = 4,358.51

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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.