Home / 3,313.92-4,970.34-1,122.60

Finding the Fourth Proportional to 3,313.92, 4,970.34 and 1,122.60

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Solution

The fourth proportional to 3,313.92, 4,970.34 and 1,122.60 is: 1,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.92 : 4,970.34 = 1,122.60 : x
  2. Step 2: Convert to fraction form
    3,313.92/4,970.34 = 1,122.60/x
  3. Step 3: Cross multiply
    3,313.92x = 4,970.34 × 1,122.60
  4. Step 4: Simplify right side
    3,313.92x = 5,579,703.68
  5. Step 5: Solve for x
    x = 5,579,703.68/3,313.92
  6. Step 6: Final answer
    x = 1,683.72

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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.