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Finding the Fourth Proportional to 1,889.55, 2,834.33 and 573.31

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Solution

The fourth proportional to 1,889.55, 2,834.33 and 573.31 is: 859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.55 : 2,834.33 = 573.31 : x
  2. Step 2: Convert to fraction form
    1,889.55/2,834.33 = 573.31/x
  3. Step 3: Cross multiply
    1,889.55x = 2,834.33 × 573.31
  4. Step 4: Simplify right side
    1,889.55x = 1,624,959.51
  5. Step 5: Solve for x
    x = 1,624,959.51/1,889.55
  6. Step 6: Final answer
    x = 859.97

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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.