Home / 1,964.20-2,710.92-1,178.68

Finding the Fourth Proportional to 1,964.20, 2,710.92 and 1,178.68

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Solution

The fourth proportional to 1,964.20, 2,710.92 and 1,178.68 is: 1,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.20 : 2,710.92 = 1,178.68 : x
  2. Step 2: Convert to fraction form
    1,964.20/2,710.92 = 1,178.68/x
  3. Step 3: Cross multiply
    1,964.20x = 2,710.92 × 1,178.68
  4. Step 4: Simplify right side
    1,964.20x = 3,195,307.19
  5. Step 5: Solve for x
    x = 3,195,307.19/1,964.20
  6. Step 6: Final answer
    x = 1,626.77

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Why These Related Problems?

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