Home / 1,207.26-1,811.16-341.55

Finding the Fourth Proportional to 1,207.26, 1,811.16 and 341.55

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Solution

The fourth proportional to 1,207.26, 1,811.16 and 341.55 is: 512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.26 : 1,811.16 = 341.55 : x
  2. Step 2: Convert to fraction form
    1,207.26/1,811.16 = 341.55/x
  3. Step 3: Cross multiply
    1,207.26x = 1,811.16 × 341.55
  4. Step 4: Simplify right side
    1,207.26x = 618,601.70
  5. Step 5: Solve for x
    x = 618,601.70/1,207.26
  6. Step 6: Final answer
    x = 512.40

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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.