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Finding the Fourth Proportional to 1,641.30, 2,264.94 and 895.29

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Solution

The fourth proportional to 1,641.30, 2,264.94 and 895.29 is: 1,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.30 : 2,264.94 = 895.29 : x
  2. Step 2: Convert to fraction form
    1,641.30/2,264.94 = 895.29/x
  3. Step 3: Cross multiply
    1,641.30x = 2,264.94 × 895.29
  4. Step 4: Simplify right side
    1,641.30x = 2,027,778.13
  5. Step 5: Solve for x
    x = 2,027,778.13/1,641.30
  6. Step 6: Final answer
    x = 1,235.47

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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.