Home / 3,313.08-4,970.09-1,121.22

Finding the Fourth Proportional to 3,313.08, 4,970.09 and 1,121.22

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Solution

The fourth proportional to 3,313.08, 4,970.09 and 1,121.22 is: 1,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.08 : 4,970.09 = 1,121.22 : x
  2. Step 2: Convert to fraction form
    3,313.08/4,970.09 = 1,121.22/x
  3. Step 3: Cross multiply
    3,313.08x = 4,970.09 × 1,121.22
  4. Step 4: Simplify right side
    3,313.08x = 5,572,558.70
  5. Step 5: Solve for x
    x = 5,572,558.70/3,313.08
  6. Step 6: Final answer
    x = 1,681.99

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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.