Home / 1,324.24-1,980.54-1,178.92

Finding the Fourth Proportional to 1,324.24, 1,980.54 and 1,178.92

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Solution

The fourth proportional to 1,324.24, 1,980.54 and 1,178.92 is: 1,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.24 : 1,980.54 = 1,178.92 : x
  2. Step 2: Convert to fraction form
    1,324.24/1,980.54 = 1,178.92/x
  3. Step 3: Cross multiply
    1,324.24x = 1,980.54 × 1,178.92
  4. Step 4: Simplify right side
    1,324.24x = 2,334,898.22
  5. Step 5: Solve for x
    x = 2,334,898.22/1,324.24
  6. Step 6: Final answer
    x = 1,763.20

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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.