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Finding the Fourth Proportional to 2,641.84, 3,962.74 and 1,763.52

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Solution

The fourth proportional to 2,641.84, 3,962.74 and 1,763.52 is: 2,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.84 : 3,962.74 = 1,763.52 : x
  2. Step 2: Convert to fraction form
    2,641.84/3,962.74 = 1,763.52/x
  3. Step 3: Cross multiply
    2,641.84x = 3,962.74 × 1,763.52
  4. Step 4: Simplify right side
    2,641.84x = 6,988,371.24
  5. Step 5: Solve for x
    x = 6,988,371.24/2,641.84
  6. Step 6: Final answer
    x = 2,645.27

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.