Home / 1,721.36-2,576.96-1,284.53

Finding the Fourth Proportional to 1,721.36, 2,576.96 and 1,284.53

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Solution

The fourth proportional to 1,721.36, 2,576.96 and 1,284.53 is: 1,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.36 : 2,576.96 = 1,284.53 : x
  2. Step 2: Convert to fraction form
    1,721.36/2,576.96 = 1,284.53/x
  3. Step 3: Cross multiply
    1,721.36x = 2,576.96 × 1,284.53
  4. Step 4: Simplify right side
    1,721.36x = 3,310,182.43
  5. Step 5: Solve for x
    x = 3,310,182.43/1,721.36
  6. Step 6: Final answer
    x = 1,923.00

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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.