Home / 1,324.32-1,977.06-1,178.52

Finding the Fourth Proportional to 1,324.32, 1,977.06 and 1,178.52

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Solution

The fourth proportional to 1,324.32, 1,977.06 and 1,178.52 is: 1,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.32 : 1,977.06 = 1,178.52 : x
  2. Step 2: Convert to fraction form
    1,324.32/1,977.06 = 1,178.52/x
  3. Step 3: Cross multiply
    1,324.32x = 1,977.06 × 1,178.52
  4. Step 4: Simplify right side
    1,324.32x = 2,330,004.75
  5. Step 5: Solve for x
    x = 2,330,004.75/1,324.32
  6. Step 6: Final answer
    x = 1,759.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.