Home / 3,112.80-4,669.18-1,263.48

Finding the Fourth Proportional to 3,112.80, 4,669.18 and 1,263.48

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Solution

The fourth proportional to 3,112.80, 4,669.18 and 1,263.48 is: 1,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.80 : 4,669.18 = 1,263.48 : x
  2. Step 2: Convert to fraction form
    3,112.80/4,669.18 = 1,263.48/x
  3. Step 3: Cross multiply
    3,112.80x = 4,669.18 × 1,263.48
  4. Step 4: Simplify right side
    3,112.80x = 5,899,415.55
  5. Step 5: Solve for x
    x = 5,899,415.55/3,112.80
  6. Step 6: Final answer
    x = 1,895.21

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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.