Home / 1,336.72-2,007.34-1,117.12

Finding the Fourth Proportional to 1,336.72, 2,007.34 and 1,117.12

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Solution

The fourth proportional to 1,336.72, 2,007.34 and 1,117.12 is: 1,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.72 : 2,007.34 = 1,117.12 : x
  2. Step 2: Convert to fraction form
    1,336.72/2,007.34 = 1,117.12/x
  3. Step 3: Cross multiply
    1,336.72x = 2,007.34 × 1,117.12
  4. Step 4: Simplify right side
    1,336.72x = 2,242,439.66
  5. Step 5: Solve for x
    x = 2,242,439.66/1,336.72
  6. Step 6: Final answer
    x = 1,677.57

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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.