Home / 3,814.31-5,721.48-1,347.56

Finding the Fourth Proportional to 3,814.31, 5,721.48 and 1,347.56

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Solution

The fourth proportional to 3,814.31, 5,721.48 and 1,347.56 is: 2,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.31 : 5,721.48 = 1,347.56 : x
  2. Step 2: Convert to fraction form
    3,814.31/5,721.48 = 1,347.56/x
  3. Step 3: Cross multiply
    3,814.31x = 5,721.48 × 1,347.56
  4. Step 4: Simplify right side
    3,814.31x = 7,710,037.59
  5. Step 5: Solve for x
    x = 7,710,037.59/3,814.31
  6. Step 6: Final answer
    x = 2,021.35

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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.