Home / 1,588.26-2,191.68-889.50

Finding the Fourth Proportional to 1,588.26, 2,191.68 and 889.50

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Solution

The fourth proportional to 1,588.26, 2,191.68 and 889.50 is: 1,227.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.26 : 2,191.68 = 889.50 : x
  2. Step 2: Convert to fraction form
    1,588.26/2,191.68 = 889.50/x
  3. Step 3: Cross multiply
    1,588.26x = 2,191.68 × 889.50
  4. Step 4: Simplify right side
    1,588.26x = 1,949,499.36
  5. Step 5: Solve for x
    x = 1,949,499.36/1,588.26
  6. Step 6: Final answer
    x = 1,227.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.