Home / 1,213.37-1,675.50-1,151.09

Finding the Fourth Proportional to 1,213.37, 1,675.50 and 1,151.09

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Solution

The fourth proportional to 1,213.37, 1,675.50 and 1,151.09 is: 1,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.37 : 1,675.50 = 1,151.09 : x
  2. Step 2: Convert to fraction form
    1,213.37/1,675.50 = 1,151.09/x
  3. Step 3: Cross multiply
    1,213.37x = 1,675.50 × 1,151.09
  4. Step 4: Simplify right side
    1,213.37x = 1,928,641.35
  5. Step 5: Solve for x
    x = 1,928,641.35/1,213.37
  6. Step 6: Final answer
    x = 1,589.50

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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.