Home / 2,895.20-3,995.92-1,636.24

Finding the Fourth Proportional to 2,895.20, 3,995.92 and 1,636.24

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Solution

The fourth proportional to 2,895.20, 3,995.92 and 1,636.24 is: 2,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.20 : 3,995.92 = 1,636.24 : x
  2. Step 2: Convert to fraction form
    2,895.20/3,995.92 = 1,636.24/x
  3. Step 3: Cross multiply
    2,895.20x = 3,995.92 × 1,636.24
  4. Step 4: Simplify right side
    2,895.20x = 6,538,284.14
  5. Step 5: Solve for x
    x = 6,538,284.14/2,895.20
  6. Step 6: Final answer
    x = 2,258.32

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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.