Home / 4,212.76-6,318.68-1,293.10

Finding the Fourth Proportional to 4,212.76, 6,318.68 and 1,293.10

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Solution

The fourth proportional to 4,212.76, 6,318.68 and 1,293.10 is: 1,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.76 : 6,318.68 = 1,293.10 : x
  2. Step 2: Convert to fraction form
    4,212.76/6,318.68 = 1,293.10/x
  3. Step 3: Cross multiply
    4,212.76x = 6,318.68 × 1,293.10
  4. Step 4: Simplify right side
    4,212.76x = 8,170,685.11
  5. Step 5: Solve for x
    x = 8,170,685.11/4,212.76
  6. Step 6: Final answer
    x = 1,939.51

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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.