Home / 3,112.71-4,669.89-1,357.85

Finding the Fourth Proportional to 3,112.71, 4,669.89 and 1,357.85

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Solution

The fourth proportional to 3,112.71, 4,669.89 and 1,357.85 is: 2,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.71 : 4,669.89 = 1,357.85 : x
  2. Step 2: Convert to fraction form
    3,112.71/4,669.89 = 1,357.85/x
  3. Step 3: Cross multiply
    3,112.71x = 4,669.89 × 1,357.85
  4. Step 4: Simplify right side
    3,112.71x = 6,341,024.36
  5. Step 5: Solve for x
    x = 6,341,024.36/3,112.71
  6. Step 6: Final answer
    x = 2,037.14

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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.