Home / 3,750.49-5,172.82-2,869.21

Finding the Fourth Proportional to 3,750.49, 5,172.82 and 2,869.21

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Solution

The fourth proportional to 3,750.49, 5,172.82 and 2,869.21 is: 3,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.49 : 5,172.82 = 2,869.21 : x
  2. Step 2: Convert to fraction form
    3,750.49/5,172.82 = 2,869.21/x
  3. Step 3: Cross multiply
    3,750.49x = 5,172.82 × 2,869.21
  4. Step 4: Simplify right side
    3,750.49x = 14,841,906.87
  5. Step 5: Solve for x
    x = 14,841,906.87/3,750.49
  6. Step 6: Final answer
    x = 3,957.32

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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.