Home / 2,824.89-3,897.86-1,629.61

Finding the Fourth Proportional to 2,824.89, 3,897.86 and 1,629.61

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Solution

The fourth proportional to 2,824.89, 3,897.86 and 1,629.61 is: 2,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.89 : 3,897.86 = 1,629.61 : x
  2. Step 2: Convert to fraction form
    2,824.89/3,897.86 = 1,629.61/x
  3. Step 3: Cross multiply
    2,824.89x = 3,897.86 × 1,629.61
  4. Step 4: Simplify right side
    2,824.89x = 6,351,964.00
  5. Step 5: Solve for x
    x = 6,351,964.00/2,824.89
  6. Step 6: Final answer
    x = 2,248.57

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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.