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Finding the Fourth Proportional to 2,165.89, 3,249.24 and 705.46

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Solution

The fourth proportional to 2,165.89, 3,249.24 and 705.46 is: 1,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.89 : 3,249.24 = 705.46 : x
  2. Step 2: Convert to fraction form
    2,165.89/3,249.24 = 705.46/x
  3. Step 3: Cross multiply
    2,165.89x = 3,249.24 × 705.46
  4. Step 4: Simplify right side
    2,165.89x = 2,292,208.85
  5. Step 5: Solve for x
    x = 2,292,208.85/2,165.89
  6. Step 6: Final answer
    x = 1,058.32

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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.