Home / 4,239.12-6,358.66-1,317.42

Finding the Fourth Proportional to 4,239.12, 6,358.66 and 1,317.42

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Solution

The fourth proportional to 4,239.12, 6,358.66 and 1,317.42 is: 1,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.12 : 6,358.66 = 1,317.42 : x
  2. Step 2: Convert to fraction form
    4,239.12/6,358.66 = 1,317.42/x
  3. Step 3: Cross multiply
    4,239.12x = 6,358.66 × 1,317.42
  4. Step 4: Simplify right side
    4,239.12x = 8,377,025.86
  5. Step 5: Solve for x
    x = 8,377,025.86/4,239.12
  6. Step 6: Final answer
    x = 1,976.12

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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.