Home / 1,330.56-1,993.68-1,192.86

Finding the Fourth Proportional to 1,330.56, 1,993.68 and 1,192.86

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Solution

The fourth proportional to 1,330.56, 1,993.68 and 1,192.86 is: 1,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.56 : 1,993.68 = 1,192.86 : x
  2. Step 2: Convert to fraction form
    1,330.56/1,993.68 = 1,192.86/x
  3. Step 3: Cross multiply
    1,330.56x = 1,993.68 × 1,192.86
  4. Step 4: Simplify right side
    1,330.56x = 2,378,181.12
  5. Step 5: Solve for x
    x = 2,378,181.12/1,330.56
  6. Step 6: Final answer
    x = 1,787.35

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1.5x scale

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.