Home / 3,110.22-4,666.29-918.99

Finding the Fourth Proportional to 3,110.22, 4,666.29 and 918.99

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Solution

The fourth proportional to 3,110.22, 4,666.29 and 918.99 is: 1,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.22 : 4,666.29 = 918.99 : x
  2. Step 2: Convert to fraction form
    3,110.22/4,666.29 = 918.99/x
  3. Step 3: Cross multiply
    3,110.22x = 4,666.29 × 918.99
  4. Step 4: Simplify right side
    3,110.22x = 4,288,273.85
  5. Step 5: Solve for x
    x = 4,288,273.85/3,110.22
  6. Step 6: Final answer
    x = 1,378.77

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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.