Home / 3,239.13-4,857.66-1,389.75

Finding the Fourth Proportional to 3,239.13, 4,857.66 and 1,389.75

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Solution

The fourth proportional to 3,239.13, 4,857.66 and 1,389.75 is: 2,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.13 : 4,857.66 = 1,389.75 : x
  2. Step 2: Convert to fraction form
    3,239.13/4,857.66 = 1,389.75/x
  3. Step 3: Cross multiply
    3,239.13x = 4,857.66 × 1,389.75
  4. Step 4: Simplify right side
    3,239.13x = 6,750,901.75
  5. Step 5: Solve for x
    x = 6,750,901.75/3,239.13
  6. Step 6: Final answer
    x = 2,084.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.