Home / 5,178.09-7,146.59-3,083.43

Finding the Fourth Proportional to 5,178.09, 7,146.59 and 3,083.43

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Solution

The fourth proportional to 5,178.09, 7,146.59 and 3,083.43 is: 4,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.09 : 7,146.59 = 3,083.43 : x
  2. Step 2: Convert to fraction form
    5,178.09/7,146.59 = 3,083.43/x
  3. Step 3: Cross multiply
    5,178.09x = 7,146.59 × 3,083.43
  4. Step 4: Simplify right side
    5,178.09x = 22,035,994.59
  5. Step 5: Solve for x
    x = 22,035,994.59/5,178.09
  6. Step 6: Final answer
    x = 4,255.62

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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.