Home / 1,964.34-2,946.11-1,087.70

Finding the Fourth Proportional to 1,964.34, 2,946.11 and 1,087.70

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Solution

The fourth proportional to 1,964.34, 2,946.11 and 1,087.70 is: 1,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.34 : 2,946.11 = 1,087.70 : x
  2. Step 2: Convert to fraction form
    1,964.34/2,946.11 = 1,087.70/x
  3. Step 3: Cross multiply
    1,964.34x = 2,946.11 × 1,087.70
  4. Step 4: Simplify right side
    1,964.34x = 3,204,463.68
  5. Step 5: Solve for x
    x = 3,204,463.68/1,964.34
  6. Step 6: Final answer
    x = 1,631.32

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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.