Home / 2,072.70-2,859.30-1,365.75

Finding the Fourth Proportional to 2,072.70, 2,859.30 and 1,365.75

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Solution

The fourth proportional to 2,072.70, 2,859.30 and 1,365.75 is: 1,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.70 : 2,859.30 = 1,365.75 : x
  2. Step 2: Convert to fraction form
    2,072.70/2,859.30 = 1,365.75/x
  3. Step 3: Cross multiply
    2,072.70x = 2,859.30 × 1,365.75
  4. Step 4: Simplify right side
    2,072.70x = 3,905,088.98
  5. Step 5: Solve for x
    x = 3,905,088.98/2,072.70
  6. Step 6: Final answer
    x = 1,884.06

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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.