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Finding the Fourth Proportional to 1,630.45, 2,444.04 and 809.32

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Solution

The fourth proportional to 1,630.45, 2,444.04 and 809.32 is: 1,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.45 : 2,444.04 = 809.32 : x
  2. Step 2: Convert to fraction form
    1,630.45/2,444.04 = 809.32/x
  3. Step 3: Cross multiply
    1,630.45x = 2,444.04 × 809.32
  4. Step 4: Simplify right side
    1,630.45x = 1,978,010.45
  5. Step 5: Solve for x
    x = 1,978,010.45/1,630.45
  6. Step 6: Final answer
    x = 1,213.17

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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.