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Finding the Fourth Proportional to 2,625.99, 3,938.99 and 1,801.77

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Solution

The fourth proportional to 2,625.99, 3,938.99 and 1,801.77 is: 2,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.99 : 3,938.99 = 1,801.77 : x
  2. Step 2: Convert to fraction form
    2,625.99/3,938.99 = 1,801.77/x
  3. Step 3: Cross multiply
    2,625.99x = 3,938.99 × 1,801.77
  4. Step 4: Simplify right side
    2,625.99x = 7,097,153.98
  5. Step 5: Solve for x
    x = 7,097,153.98/2,625.99
  6. Step 6: Final answer
    x = 2,702.65

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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.