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Finding the Fourth Proportional to 2,651.34, 3,977.01 and 703.83

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Solution

The fourth proportional to 2,651.34, 3,977.01 and 703.83 is: 1,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.34 : 3,977.01 = 703.83 : x
  2. Step 2: Convert to fraction form
    2,651.34/3,977.01 = 703.83/x
  3. Step 3: Cross multiply
    2,651.34x = 3,977.01 × 703.83
  4. Step 4: Simplify right side
    2,651.34x = 2,799,138.95
  5. Step 5: Solve for x
    x = 2,799,138.95/2,651.34
  6. Step 6: Final answer
    x = 1,055.75

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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.