Home / 5,440.91-7,508.48-3,172.59

Finding the Fourth Proportional to 5,440.91, 7,508.48 and 3,172.59

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Solution

The fourth proportional to 5,440.91, 7,508.48 and 3,172.59 is: 4,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.91 : 7,508.48 = 3,172.59 : x
  2. Step 2: Convert to fraction form
    5,440.91/7,508.48 = 3,172.59/x
  3. Step 3: Cross multiply
    5,440.91x = 7,508.48 × 3,172.59
  4. Step 4: Simplify right side
    5,440.91x = 23,821,312.70
  5. Step 5: Solve for x
    x = 23,821,312.70/5,440.91
  6. Step 6: Final answer
    x = 4,378.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.