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Finding the Fourth Proportional to 2,165.69, 3,249.07 and 626.69

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Solution

The fourth proportional to 2,165.69, 3,249.07 and 626.69 is: 940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.69 : 3,249.07 = 626.69 : x
  2. Step 2: Convert to fraction form
    2,165.69/3,249.07 = 626.69/x
  3. Step 3: Cross multiply
    2,165.69x = 3,249.07 × 626.69
  4. Step 4: Simplify right side
    2,165.69x = 2,036,153.12
  5. Step 5: Solve for x
    x = 2,036,153.12/2,165.69
  6. Step 6: Final answer
    x = 940.19

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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.