Home / 3,608.44-5,412.70-1,555

Finding the Fourth Proportional to 3,608.44, 5,412.70 and 1,555

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Solution

The fourth proportional to 3,608.44, 5,412.70 and 1,555 is: 2,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.44 : 5,412.70 = 1,555 : x
  2. Step 2: Convert to fraction form
    3,608.44/5,412.70 = 1,555/x
  3. Step 3: Cross multiply
    3,608.44x = 5,412.70 × 1,555
  4. Step 4: Simplify right side
    3,608.44x = 8,416,748.50
  5. Step 5: Solve for x
    x = 8,416,748.50/3,608.44
  6. Step 6: Final answer
    x = 2,332.52

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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.