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Finding the Fourth Proportional to 2,305.60, 3,458.43 and 662.20

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Solution

The fourth proportional to 2,305.60, 3,458.43 and 662.20 is: 993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.60 : 3,458.43 = 662.20 : x
  2. Step 2: Convert to fraction form
    2,305.60/3,458.43 = 662.20/x
  3. Step 3: Cross multiply
    2,305.60x = 3,458.43 × 662.20
  4. Step 4: Simplify right side
    2,305.60x = 2,290,172.35
  5. Step 5: Solve for x
    x = 2,290,172.35/2,305.60
  6. Step 6: Final answer
    x = 993.31

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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.