Home / 4,755.45-7,098.81-4,172.25

Finding the Fourth Proportional to 4,755.45, 7,098.81 and 4,172.25

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Solution

The fourth proportional to 4,755.45, 7,098.81 and 4,172.25 is: 6,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.45 : 7,098.81 = 4,172.25 : x
  2. Step 2: Convert to fraction form
    4,755.45/7,098.81 = 4,172.25/x
  3. Step 3: Cross multiply
    4,755.45x = 7,098.81 × 4,172.25
  4. Step 4: Simplify right side
    4,755.45x = 29,618,010.02
  5. Step 5: Solve for x
    x = 29,618,010.02/4,755.45
  6. Step 6: Final answer
    x = 6,228.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.