Home / 1,509.25-2,263.33-816.43

Finding the Fourth Proportional to 1,509.25, 2,263.33 and 816.43

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Solution

The fourth proportional to 1,509.25, 2,263.33 and 816.43 is: 1,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.25 : 2,263.33 = 816.43 : x
  2. Step 2: Convert to fraction form
    1,509.25/2,263.33 = 816.43/x
  3. Step 3: Cross multiply
    1,509.25x = 2,263.33 × 816.43
  4. Step 4: Simplify right side
    1,509.25x = 1,847,837.15
  5. Step 5: Solve for x
    x = 1,847,837.15/1,509.25
  6. Step 6: Final answer
    x = 1,224.35

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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.