Home / 4,103.12-6,143.64-3,124.56

Finding the Fourth Proportional to 4,103.12, 6,143.64 and 3,124.56

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Solution

The fourth proportional to 4,103.12, 6,143.64 and 3,124.56 is: 4,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.12 : 6,143.64 = 3,124.56 : x
  2. Step 2: Convert to fraction form
    4,103.12/6,143.64 = 3,124.56/x
  3. Step 3: Cross multiply
    4,103.12x = 6,143.64 × 3,124.56
  4. Step 4: Simplify right side
    4,103.12x = 19,196,171.80
  5. Step 5: Solve for x
    x = 19,196,171.80/4,103.12
  6. Step 6: Final answer
    x = 4,678.43

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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.