Home / 5,107.19-7,653.52-2,142.42

Finding the Fourth Proportional to 5,107.19, 7,653.52 and 2,142.42

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Solution

The fourth proportional to 5,107.19, 7,653.52 and 2,142.42 is: 3,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.19 : 7,653.52 = 2,142.42 : x
  2. Step 2: Convert to fraction form
    5,107.19/7,653.52 = 2,142.42/x
  3. Step 3: Cross multiply
    5,107.19x = 7,653.52 × 2,142.42
  4. Step 4: Simplify right side
    5,107.19x = 16,397,028.30
  5. Step 5: Solve for x
    x = 16,397,028.30/5,107.19
  6. Step 6: Final answer
    x = 3,210.58

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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.