Home / 5,143.58-7,098.27-3,155.24

Finding the Fourth Proportional to 5,143.58, 7,098.27 and 3,155.24

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Solution

The fourth proportional to 5,143.58, 7,098.27 and 3,155.24 is: 4,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.58 : 7,098.27 = 3,155.24 : x
  2. Step 2: Convert to fraction form
    5,143.58/7,098.27 = 3,155.24/x
  3. Step 3: Cross multiply
    5,143.58x = 7,098.27 × 3,155.24
  4. Step 4: Simplify right side
    5,143.58x = 22,396,709.94
  5. Step 5: Solve for x
    x = 22,396,709.94/5,143.58
  6. Step 6: Final answer
    x = 4,354.30

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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.