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Finding the Fourth Proportional to 2,259.49, 3,388.55 and 615.83

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Solution

The fourth proportional to 2,259.49, 3,388.55 and 615.83 is: 923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.49 : 3,388.55 = 615.83 : x
  2. Step 2: Convert to fraction form
    2,259.49/3,388.55 = 615.83/x
  3. Step 3: Cross multiply
    2,259.49x = 3,388.55 × 615.83
  4. Step 4: Simplify right side
    2,259.49x = 2,086,770.75
  5. Step 5: Solve for x
    x = 2,086,770.75/2,259.49
  6. Step 6: Final answer
    x = 923.56

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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.