Home / 4,239.30-6,358.92-1,317.60

Finding the Fourth Proportional to 4,239.30, 6,358.92 and 1,317.60

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Solution

The fourth proportional to 4,239.30, 6,358.92 and 1,317.60 is: 1,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.30 : 6,358.92 = 1,317.60 : x
  2. Step 2: Convert to fraction form
    4,239.30/6,358.92 = 1,317.60/x
  3. Step 3: Cross multiply
    4,239.30x = 6,358.92 × 1,317.60
  4. Step 4: Simplify right side
    4,239.30x = 8,378,512.99
  5. Step 5: Solve for x
    x = 8,378,512.99/4,239.30
  6. Step 6: Final answer
    x = 1,976.39

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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.