Home / 5,146.68-7,728.66-3,107.64

Finding the Fourth Proportional to 5,146.68, 7,728.66 and 3,107.64

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Solution

The fourth proportional to 5,146.68, 7,728.66 and 3,107.64 is: 4,666.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.68 : 7,728.66 = 3,107.64 : x
  2. Step 2: Convert to fraction form
    5,146.68/7,728.66 = 3,107.64/x
  3. Step 3: Cross multiply
    5,146.68x = 7,728.66 × 3,107.64
  4. Step 4: Simplify right side
    5,146.68x = 24,017,892.96
  5. Step 5: Solve for x
    x = 24,017,892.96/5,146.68
  6. Step 6: Final answer
    x = 4,666.68

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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.