Home / 2,824.46-3,897.78-1,645.64

Finding the Fourth Proportional to 2,824.46, 3,897.78 and 1,645.64

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Solution

The fourth proportional to 2,824.46, 3,897.78 and 1,645.64 is: 2,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.46 : 3,897.78 = 1,645.64 : x
  2. Step 2: Convert to fraction form
    2,824.46/3,897.78 = 1,645.64/x
  3. Step 3: Cross multiply
    2,824.46x = 3,897.78 × 1,645.64
  4. Step 4: Simplify right side
    2,824.46x = 6,414,342.68
  5. Step 5: Solve for x
    x = 6,414,342.68/2,824.46
  6. Step 6: Final answer
    x = 2,271.00

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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.