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Finding the Fourth Proportional to 3,605.82, 4,978.29 and 2,944.23

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Solution

The fourth proportional to 3,605.82, 4,978.29 and 2,944.23 is: 4,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.82 : 4,978.29 = 2,944.23 : x
  2. Step 2: Convert to fraction form
    3,605.82/4,978.29 = 2,944.23/x
  3. Step 3: Cross multiply
    3,605.82x = 4,978.29 × 2,944.23
  4. Step 4: Simplify right side
    3,605.82x = 14,657,230.77
  5. Step 5: Solve for x
    x = 14,657,230.77/3,605.82
  6. Step 6: Final answer
    x = 4,064.88

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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.