Home / 1,613.72-2,224.97-1,171.46

Finding the Fourth Proportional to 1,613.72, 2,224.97 and 1,171.46

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Solution

The fourth proportional to 1,613.72, 2,224.97 and 1,171.46 is: 1,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.72 : 2,224.97 = 1,171.46 : x
  2. Step 2: Convert to fraction form
    1,613.72/2,224.97 = 1,171.46/x
  3. Step 3: Cross multiply
    1,613.72x = 2,224.97 × 1,171.46
  4. Step 4: Simplify right side
    1,613.72x = 2,606,467.45
  5. Step 5: Solve for x
    x = 2,606,467.45/1,613.72
  6. Step 6: Final answer
    x = 1,615.19

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1.5x scale

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.