Home / 3,110.52-4,666.23-918.96

Finding the Fourth Proportional to 3,110.52, 4,666.23 and 918.96

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Solution

The fourth proportional to 3,110.52, 4,666.23 and 918.96 is: 1,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.52 : 4,666.23 = 918.96 : x
  2. Step 2: Convert to fraction form
    3,110.52/4,666.23 = 918.96/x
  3. Step 3: Cross multiply
    3,110.52x = 4,666.23 × 918.96
  4. Step 4: Simplify right side
    3,110.52x = 4,288,078.72
  5. Step 5: Solve for x
    x = 4,288,078.72/3,110.52
  6. Step 6: Final answer
    x = 1,378.57

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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.