Home / 3,814.32-5,721.51-1,866

Finding the Fourth Proportional to 3,814.32, 5,721.51 and 1,866

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Solution

The fourth proportional to 3,814.32, 5,721.51 and 1,866 is: 2,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.32 : 5,721.51 = 1,866 : x
  2. Step 2: Convert to fraction form
    3,814.32/5,721.51 = 1,866/x
  3. Step 3: Cross multiply
    3,814.32x = 5,721.51 × 1,866
  4. Step 4: Simplify right side
    3,814.32x = 10,676,337.66
  5. Step 5: Solve for x
    x = 10,676,337.66/3,814.32
  6. Step 6: Final answer
    x = 2,799.01

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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.