Home / 4,138.94-6,209.76-1,217.28

Finding the Fourth Proportional to 4,138.94, 6,209.76 and 1,217.28

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Solution

The fourth proportional to 4,138.94, 6,209.76 and 1,217.28 is: 1,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.94 : 6,209.76 = 1,217.28 : x
  2. Step 2: Convert to fraction form
    4,138.94/6,209.76 = 1,217.28/x
  3. Step 3: Cross multiply
    4,138.94x = 6,209.76 × 1,217.28
  4. Step 4: Simplify right side
    4,138.94x = 7,559,016.65
  5. Step 5: Solve for x
    x = 7,559,016.65/4,138.94
  6. Step 6: Final answer
    x = 1,826.32

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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.