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Finding the Fourth Proportional to 1,641.22, 2,264.90 and 895.17

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Solution

The fourth proportional to 1,641.22, 2,264.90 and 895.17 is: 1,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.22 : 2,264.90 = 895.17 : x
  2. Step 2: Convert to fraction form
    1,641.22/2,264.90 = 895.17/x
  3. Step 3: Cross multiply
    1,641.22x = 2,264.90 × 895.17
  4. Step 4: Simplify right side
    1,641.22x = 2,027,470.53
  5. Step 5: Solve for x
    x = 2,027,470.53/1,641.22
  6. Step 6: Final answer
    x = 1,235.34

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Double scale
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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.