Home / 1,727.64-2,592.36-1,319.40

Finding the Fourth Proportional to 1,727.64, 2,592.36 and 1,319.40

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Solution

The fourth proportional to 1,727.64, 2,592.36 and 1,319.40 is: 1,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.64 : 2,592.36 = 1,319.40 : x
  2. Step 2: Convert to fraction form
    1,727.64/2,592.36 = 1,319.40/x
  3. Step 3: Cross multiply
    1,727.64x = 2,592.36 × 1,319.40
  4. Step 4: Simplify right side
    1,727.64x = 3,420,359.78
  5. Step 5: Solve for x
    x = 3,420,359.78/1,727.64
  6. Step 6: Final answer
    x = 1,979.79

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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.