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Finding the Fourth Proportional to 1,652.00, 2,279.77 and 905.99

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Solution

The fourth proportional to 1,652.00, 2,279.77 and 905.99 is: 1,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.00 : 2,279.77 = 905.99 : x
  2. Step 2: Convert to fraction form
    1,652.00/2,279.77 = 905.99/x
  3. Step 3: Cross multiply
    1,652.00x = 2,279.77 × 905.99
  4. Step 4: Simplify right side
    1,652.00x = 2,065,452.26
  5. Step 5: Solve for x
    x = 2,065,452.26/1,652.00
  6. Step 6: Final answer
    x = 1,250.27

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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.