Home / 5,396.89-7,448.25-3,158.64

Finding the Fourth Proportional to 5,396.89, 7,448.25 and 3,158.64

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Solution

The fourth proportional to 5,396.89, 7,448.25 and 3,158.64 is: 4,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.89 : 7,448.25 = 3,158.64 : x
  2. Step 2: Convert to fraction form
    5,396.89/7,448.25 = 3,158.64/x
  3. Step 3: Cross multiply
    5,396.89x = 7,448.25 × 3,158.64
  4. Step 4: Simplify right side
    5,396.89x = 23,526,287.35
  5. Step 5: Solve for x
    x = 23,526,287.35/5,396.89
  6. Step 6: Final answer
    x = 4,359.23

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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.