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Finding the Fourth Proportional to 2,647.76, 3,649.66 and 1,796.74

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Solution

The fourth proportional to 2,647.76, 3,649.66 and 1,796.74 is: 2,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.76 : 3,649.66 = 1,796.74 : x
  2. Step 2: Convert to fraction form
    2,647.76/3,649.66 = 1,796.74/x
  3. Step 3: Cross multiply
    2,647.76x = 3,649.66 × 1,796.74
  4. Step 4: Simplify right side
    2,647.76x = 6,557,490.11
  5. Step 5: Solve for x
    x = 6,557,490.11/2,647.76
  6. Step 6: Final answer
    x = 2,476.62

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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.