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Finding the Fourth Proportional to 2,165.09, 3,247.50 and 626.09

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Solution

The fourth proportional to 2,165.09, 3,247.50 and 626.09 is: 939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.09 : 3,247.50 = 626.09 : x
  2. Step 2: Convert to fraction form
    2,165.09/3,247.50 = 626.09/x
  3. Step 3: Cross multiply
    2,165.09x = 3,247.50 × 626.09
  4. Step 4: Simplify right side
    2,165.09x = 2,033,227.28
  5. Step 5: Solve for x
    x = 2,033,227.28/2,165.09
  6. Step 6: Final answer
    x = 939.10

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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.