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Finding the Fourth Proportional to 2,303.88, 3,454.80 and 660.05

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Solution

The fourth proportional to 2,303.88, 3,454.80 and 660.05 is: 989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.88 : 3,454.80 = 660.05 : x
  2. Step 2: Convert to fraction form
    2,303.88/3,454.80 = 660.05/x
  3. Step 3: Cross multiply
    2,303.88x = 3,454.80 × 660.05
  4. Step 4: Simplify right side
    2,303.88x = 2,280,337.66
  5. Step 5: Solve for x
    x = 2,280,337.66/2,303.88
  6. Step 6: Final answer
    x = 989.78

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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.