Home / 3,626.72-5,440.26-1,129.61

Finding the Fourth Proportional to 3,626.72, 5,440.26 and 1,129.61

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Solution

The fourth proportional to 3,626.72, 5,440.26 and 1,129.61 is: 1,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.72 : 5,440.26 = 1,129.61 : x
  2. Step 2: Convert to fraction form
    3,626.72/5,440.26 = 1,129.61/x
  3. Step 3: Cross multiply
    3,626.72x = 5,440.26 × 1,129.61
  4. Step 4: Simplify right side
    3,626.72x = 6,145,347.46
  5. Step 5: Solve for x
    x = 6,145,347.46/3,626.72
  6. Step 6: Final answer
    x = 1,694.47

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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.