Home / 1,329.30-1,836.99-1,066.86

Finding the Fourth Proportional to 1,329.30, 1,836.99 and 1,066.86

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Solution

The fourth proportional to 1,329.30, 1,836.99 and 1,066.86 is: 1,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.30 : 1,836.99 = 1,066.86 : x
  2. Step 2: Convert to fraction form
    1,329.30/1,836.99 = 1,066.86/x
  3. Step 3: Cross multiply
    1,329.30x = 1,836.99 × 1,066.86
  4. Step 4: Simplify right side
    1,329.30x = 1,959,811.15
  5. Step 5: Solve for x
    x = 1,959,811.15/1,329.30
  6. Step 6: Final answer
    x = 1,474.32

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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.