Home / 5,207.78-7,185.63-3,083.98

Finding the Fourth Proportional to 5,207.78, 7,185.63 and 3,083.98

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Solution

The fourth proportional to 5,207.78, 7,185.63 and 3,083.98 is: 4,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.78 : 7,185.63 = 3,083.98 : x
  2. Step 2: Convert to fraction form
    5,207.78/7,185.63 = 3,083.98/x
  3. Step 3: Cross multiply
    5,207.78x = 7,185.63 × 3,083.98
  4. Step 4: Simplify right side
    5,207.78x = 22,160,305.82
  5. Step 5: Solve for x
    x = 22,160,305.82/5,207.78
  6. Step 6: Final answer
    x = 4,255.23

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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.