Home / 4,272.45-6,409.49-1,350.78

Finding the Fourth Proportional to 4,272.45, 6,409.49 and 1,350.78

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Solution

The fourth proportional to 4,272.45, 6,409.49 and 1,350.78 is: 2,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.45 : 6,409.49 = 1,350.78 : x
  2. Step 2: Convert to fraction form
    4,272.45/6,409.49 = 1,350.78/x
  3. Step 3: Cross multiply
    4,272.45x = 6,409.49 × 1,350.78
  4. Step 4: Simplify right side
    4,272.45x = 8,657,804.15
  5. Step 5: Solve for x
    x = 8,657,804.15/4,272.45
  6. Step 6: Final answer
    x = 2,026.43

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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.