Home / 2,318.49-3,480.44-1,861.92

Finding the Fourth Proportional to 2,318.49, 3,480.44 and 1,861.92

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Solution

The fourth proportional to 2,318.49, 3,480.44 and 1,861.92 is: 2,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.49 : 3,480.44 = 1,861.92 : x
  2. Step 2: Convert to fraction form
    2,318.49/3,480.44 = 1,861.92/x
  3. Step 3: Cross multiply
    2,318.49x = 3,480.44 × 1,861.92
  4. Step 4: Simplify right side
    2,318.49x = 6,480,291.54
  5. Step 5: Solve for x
    x = 6,480,291.54/2,318.49
  6. Step 6: Final answer
    x = 2,795.05

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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.