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Finding the Fourth Proportional to 1,662.32, 2,492.44 and 881.83

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Solution

The fourth proportional to 1,662.32, 2,492.44 and 881.83 is: 1,322.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.32 : 2,492.44 = 881.83 : x
  2. Step 2: Convert to fraction form
    1,662.32/2,492.44 = 881.83/x
  3. Step 3: Cross multiply
    1,662.32x = 2,492.44 × 881.83
  4. Step 4: Simplify right side
    1,662.32x = 2,197,909.28
  5. Step 5: Solve for x
    x = 2,197,909.28/1,662.32
  6. Step 6: Final answer
    x = 1,322.19

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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.