Home / 3,112.76-4,669.83-1,358.05

Finding the Fourth Proportional to 3,112.76, 4,669.83 and 1,358.05

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Solution

The fourth proportional to 3,112.76, 4,669.83 and 1,358.05 is: 2,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.76 : 4,669.83 = 1,358.05 : x
  2. Step 2: Convert to fraction form
    3,112.76/4,669.83 = 1,358.05/x
  3. Step 3: Cross multiply
    3,112.76x = 4,669.83 × 1,358.05
  4. Step 4: Simplify right side
    3,112.76x = 6,341,854.35
  5. Step 5: Solve for x
    x = 6,341,854.35/3,112.76
  6. Step 6: Final answer
    x = 2,037.37

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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.