Home / 4,165.20-6,247.91-1,391.77

Finding the Fourth Proportional to 4,165.20, 6,247.91 and 1,391.77

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Solution

The fourth proportional to 4,165.20, 6,247.91 and 1,391.77 is: 2,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,165.20 : 6,247.91 = 1,391.77 : x
  2. Step 2: Convert to fraction form
    4,165.20/6,247.91 = 1,391.77/x
  3. Step 3: Cross multiply
    4,165.20x = 6,247.91 × 1,391.77
  4. Step 4: Simplify right side
    4,165.20x = 8,695,653.70
  5. Step 5: Solve for x
    x = 8,695,653.70/4,165.20
  6. Step 6: Final answer
    x = 2,087.69

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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.