Home / 1,814.69-2,720.70-581.39

Finding the Fourth Proportional to 1,814.69, 2,720.70 and 581.39

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Solution

The fourth proportional to 1,814.69, 2,720.70 and 581.39 is: 871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.69 : 2,720.70 = 581.39 : x
  2. Step 2: Convert to fraction form
    1,814.69/2,720.70 = 581.39/x
  3. Step 3: Cross multiply
    1,814.69x = 2,720.70 × 581.39
  4. Step 4: Simplify right side
    1,814.69x = 1,581,794.57
  5. Step 5: Solve for x
    x = 1,581,794.57/1,814.69
  6. Step 6: Final answer
    x = 871.66

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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.