Home / 3,143.21-4,332.66-2,511.75

Finding the Fourth Proportional to 3,143.21, 4,332.66 and 2,511.75

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Solution

The fourth proportional to 3,143.21, 4,332.66 and 2,511.75 is: 3,462.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.21 : 4,332.66 = 2,511.75 : x
  2. Step 2: Convert to fraction form
    3,143.21/4,332.66 = 2,511.75/x
  3. Step 3: Cross multiply
    3,143.21x = 4,332.66 × 2,511.75
  4. Step 4: Simplify right side
    3,143.21x = 10,882,558.76
  5. Step 5: Solve for x
    x = 10,882,558.76/3,143.21
  6. Step 6: Final answer
    x = 3,462.24

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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.