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Finding the Fourth Proportional to 2,730.32, 4,096.30 and 881.40

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Solution

The fourth proportional to 2,730.32, 4,096.30 and 881.40 is: 1,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.32 : 4,096.30 = 881.40 : x
  2. Step 2: Convert to fraction form
    2,730.32/4,096.30 = 881.40/x
  3. Step 3: Cross multiply
    2,730.32x = 4,096.30 × 881.40
  4. Step 4: Simplify right side
    2,730.32x = 3,610,478.82
  5. Step 5: Solve for x
    x = 3,610,478.82/2,730.32
  6. Step 6: Final answer
    x = 1,322.36

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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.