Home / 3,081.72-4,252.77-1,684.47

Finding the Fourth Proportional to 3,081.72, 4,252.77 and 1,684.47

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Solution

The fourth proportional to 3,081.72, 4,252.77 and 1,684.47 is: 2,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.72 : 4,252.77 = 1,684.47 : x
  2. Step 2: Convert to fraction form
    3,081.72/4,252.77 = 1,684.47/x
  3. Step 3: Cross multiply
    3,081.72x = 4,252.77 × 1,684.47
  4. Step 4: Simplify right side
    3,081.72x = 7,163,663.48
  5. Step 5: Solve for x
    x = 7,163,663.48/3,081.72
  6. Step 6: Final answer
    x = 2,324.57

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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.