Home / 3,644.88-5,028.28-2,152.80

Finding the Fourth Proportional to 3,644.88, 5,028.28 and 2,152.80

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Solution

The fourth proportional to 3,644.88, 5,028.28 and 2,152.80 is: 2,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.88 : 5,028.28 = 2,152.80 : x
  2. Step 2: Convert to fraction form
    3,644.88/5,028.28 = 2,152.80/x
  3. Step 3: Cross multiply
    3,644.88x = 5,028.28 × 2,152.80
  4. Step 4: Simplify right side
    3,644.88x = 10,824,881.18
  5. Step 5: Solve for x
    x = 10,824,881.18/3,644.88
  6. Step 6: Final answer
    x = 2,969.89

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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.