Home / 1,711.05-2,566.83-540.78

Finding the Fourth Proportional to 1,711.05, 2,566.83 and 540.78

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Solution

The fourth proportional to 1,711.05, 2,566.83 and 540.78 is: 811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.05 : 2,566.83 = 540.78 : x
  2. Step 2: Convert to fraction form
    1,711.05/2,566.83 = 540.78/x
  3. Step 3: Cross multiply
    1,711.05x = 2,566.83 × 540.78
  4. Step 4: Simplify right side
    1,711.05x = 1,388,100.41
  5. Step 5: Solve for x
    x = 1,388,100.41/1,711.05
  6. Step 6: Final answer
    x = 811.26

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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.