Home / 3,425.76-5,138.64-1,117.26

Finding the Fourth Proportional to 3,425.76, 5,138.64 and 1,117.26

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Solution

The fourth proportional to 3,425.76, 5,138.64 and 1,117.26 is: 1,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.76 : 5,138.64 = 1,117.26 : x
  2. Step 2: Convert to fraction form
    3,425.76/5,138.64 = 1,117.26/x
  3. Step 3: Cross multiply
    3,425.76x = 5,138.64 × 1,117.26
  4. Step 4: Simplify right side
    3,425.76x = 5,741,196.93
  5. Step 5: Solve for x
    x = 5,741,196.93/3,425.76
  6. Step 6: Final answer
    x = 1,675.89

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Similar ratio
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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.