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Finding the Fourth Proportional to 2,645.34, 3,963.90 and 1,001.00

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Solution

The fourth proportional to 2,645.34, 3,963.90 and 1,001.00 is: 1,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.34 : 3,963.90 = 1,001.00 : x
  2. Step 2: Convert to fraction form
    2,645.34/3,963.90 = 1,001.00/x
  3. Step 3: Cross multiply
    2,645.34x = 3,963.90 × 1,001.00
  4. Step 4: Simplify right side
    2,645.34x = 3,967,844.08
  5. Step 5: Solve for x
    x = 3,967,844.08/2,645.34
  6. Step 6: Final answer
    x = 1,499.94

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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.