Home / 4,971.53-6,857.84-3,105.29

Finding the Fourth Proportional to 4,971.53, 6,857.84 and 3,105.29

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Solution

The fourth proportional to 4,971.53, 6,857.84 and 3,105.29 is: 4,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.53 : 6,857.84 = 3,105.29 : x
  2. Step 2: Convert to fraction form
    4,971.53/6,857.84 = 3,105.29/x
  3. Step 3: Cross multiply
    4,971.53x = 6,857.84 × 3,105.29
  4. Step 4: Simplify right side
    4,971.53x = 21,295,606.88
  5. Step 5: Solve for x
    x = 21,295,606.88/4,971.53
  6. Step 6: Final answer
    x = 4,283.51

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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.