Home / 1,369.63-2,056.91-1,259.74

Finding the Fourth Proportional to 1,369.63, 2,056.91 and 1,259.74

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Solution

The fourth proportional to 1,369.63, 2,056.91 and 1,259.74 is: 1,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.63 : 2,056.91 = 1,259.74 : x
  2. Step 2: Convert to fraction form
    1,369.63/2,056.91 = 1,259.74/x
  3. Step 3: Cross multiply
    1,369.63x = 2,056.91 × 1,259.74
  4. Step 4: Simplify right side
    1,369.63x = 2,591,163.59
  5. Step 5: Solve for x
    x = 2,591,163.59/1,369.63
  6. Step 6: Final answer
    x = 1,891.88

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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.