Home / 2,309.39-3,457.92-1,211.45

Finding the Fourth Proportional to 2,309.39, 3,457.92 and 1,211.45

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Solution

The fourth proportional to 2,309.39, 3,457.92 and 1,211.45 is: 1,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.39 : 3,457.92 = 1,211.45 : x
  2. Step 2: Convert to fraction form
    2,309.39/3,457.92 = 1,211.45/x
  3. Step 3: Cross multiply
    2,309.39x = 3,457.92 × 1,211.45
  4. Step 4: Simplify right side
    2,309.39x = 4,189,079.89
  5. Step 5: Solve for x
    x = 4,189,079.89/2,309.39
  6. Step 6: Final answer
    x = 1,813.94

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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.