Home / 5,613.82-7,746.79-3,129.34

Finding the Fourth Proportional to 5,613.82, 7,746.79 and 3,129.34

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Solution

The fourth proportional to 5,613.82, 7,746.79 and 3,129.34 is: 4,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.82 : 7,746.79 = 3,129.34 : x
  2. Step 2: Convert to fraction form
    5,613.82/7,746.79 = 3,129.34/x
  3. Step 3: Cross multiply
    5,613.82x = 7,746.79 × 3,129.34
  4. Step 4: Simplify right side
    5,613.82x = 24,242,339.82
  5. Step 5: Solve for x
    x = 24,242,339.82/5,613.82
  6. Step 6: Final answer
    x = 4,318.33

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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.