Home / 5,531.44-7,640.85-4,420.17

Finding the Fourth Proportional to 5,531.44, 7,640.85 and 4,420.17

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Solution

The fourth proportional to 5,531.44, 7,640.85 and 4,420.17 is: 6,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.44 : 7,640.85 = 4,420.17 : x
  2. Step 2: Convert to fraction form
    5,531.44/7,640.85 = 4,420.17/x
  3. Step 3: Cross multiply
    5,531.44x = 7,640.85 × 4,420.17
  4. Step 4: Simplify right side
    5,531.44x = 33,773,855.94
  5. Step 5: Solve for x
    x = 33,773,855.94/5,531.44
  6. Step 6: Final answer
    x = 6,105.80

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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.