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Finding the Fourth Proportional to 1,964.34, 2,710.92 and 1,080.15

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Solution

The fourth proportional to 1,964.34, 2,710.92 and 1,080.15 is: 1,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.34 : 2,710.92 = 1,080.15 : x
  2. Step 2: Convert to fraction form
    1,964.34/2,710.92 = 1,080.15/x
  3. Step 3: Cross multiply
    1,964.34x = 2,710.92 × 1,080.15
  4. Step 4: Simplify right side
    1,964.34x = 2,928,200.24
  5. Step 5: Solve for x
    x = 2,928,200.24/1,964.34
  6. Step 6: Final answer
    x = 1,490.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.