Home / 2,895.32-3,995.98-1,636.90

Finding the Fourth Proportional to 2,895.32, 3,995.98 and 1,636.90

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Solution

The fourth proportional to 2,895.32, 3,995.98 and 1,636.90 is: 2,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.32 : 3,995.98 = 1,636.90 : x
  2. Step 2: Convert to fraction form
    2,895.32/3,995.98 = 1,636.90/x
  3. Step 3: Cross multiply
    2,895.32x = 3,995.98 × 1,636.90
  4. Step 4: Simplify right side
    2,895.32x = 6,541,005.58
  5. Step 5: Solve for x
    x = 6,541,005.58/2,895.32
  6. Step 6: Final answer
    x = 2,259.16

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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.