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Finding the Fourth Proportional to 2,305.67, 3,176.28 and 1,905.66

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Solution

The fourth proportional to 2,305.67, 3,176.28 and 1,905.66 is: 2,625.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.67 : 3,176.28 = 1,905.66 : x
  2. Step 2: Convert to fraction form
    2,305.67/3,176.28 = 1,905.66/x
  3. Step 3: Cross multiply
    2,305.67x = 3,176.28 × 1,905.66
  4. Step 4: Simplify right side
    2,305.67x = 6,052,909.74
  5. Step 5: Solve for x
    x = 6,052,909.74/2,305.67
  6. Step 6: Final answer
    x = 2,625.23

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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.