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Finding the Fourth Proportional to 2,259.64, 3,390.54 and 799.48

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Solution

The fourth proportional to 2,259.64, 3,390.54 and 799.48 is: 1,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.64 : 3,390.54 = 799.48 : x
  2. Step 2: Convert to fraction form
    2,259.64/3,390.54 = 799.48/x
  3. Step 3: Cross multiply
    2,259.64x = 3,390.54 × 799.48
  4. Step 4: Simplify right side
    2,259.64x = 2,710,668.92
  5. Step 5: Solve for x
    x = 2,710,668.92/2,259.64
  6. Step 6: Final answer
    x = 1,199.60

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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.