Home / 5,154.55-7,728.46-3,394.22

Finding the Fourth Proportional to 5,154.55, 7,728.46 and 3,394.22

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Solution

The fourth proportional to 5,154.55, 7,728.46 and 3,394.22 is: 5,089.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.55 : 7,728.46 = 3,394.22 : x
  2. Step 2: Convert to fraction form
    5,154.55/7,728.46 = 3,394.22/x
  3. Step 3: Cross multiply
    5,154.55x = 7,728.46 × 3,394.22
  4. Step 4: Simplify right side
    5,154.55x = 26,232,076.53
  5. Step 5: Solve for x
    x = 26,232,076.53/5,154.55
  6. Step 6: Final answer
    x = 5,089.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.