Home / 1,318.29-1,977.37-344.37

Finding the Fourth Proportional to 1,318.29, 1,977.37 and 344.37

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Solution

The fourth proportional to 1,318.29, 1,977.37 and 344.37 is: 516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.29 : 1,977.37 = 344.37 : x
  2. Step 2: Convert to fraction form
    1,318.29/1,977.37 = 344.37/x
  3. Step 3: Cross multiply
    1,318.29x = 1,977.37 × 344.37
  4. Step 4: Simplify right side
    1,318.29x = 680,946.91
  5. Step 5: Solve for x
    x = 680,946.91/1,318.29
  6. Step 6: Final answer
    x = 516.54

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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.