Home / 2,453.44-3,385.78-1,405.50

Finding the Fourth Proportional to 2,453.44, 3,385.78 and 1,405.50

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Solution

The fourth proportional to 2,453.44, 3,385.78 and 1,405.50 is: 1,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.44 : 3,385.78 = 1,405.50 : x
  2. Step 2: Convert to fraction form
    2,453.44/3,385.78 = 1,405.50/x
  3. Step 3: Cross multiply
    2,453.44x = 3,385.78 × 1,405.50
  4. Step 4: Simplify right side
    2,453.44x = 4,758,710.28
  5. Step 5: Solve for x
    x = 4,758,710.28/2,453.44
  6. Step 6: Final answer
    x = 1,939.61

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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.