Home / 1,576.43-2,173.22-1,078.28

Finding the Fourth Proportional to 1,576.43, 2,173.22 and 1,078.28

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Solution

The fourth proportional to 1,576.43, 2,173.22 and 1,078.28 is: 1,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.43 : 2,173.22 = 1,078.28 : x
  2. Step 2: Convert to fraction form
    1,576.43/2,173.22 = 1,078.28/x
  3. Step 3: Cross multiply
    1,576.43x = 2,173.22 × 1,078.28
  4. Step 4: Simplify right side
    1,576.43x = 2,343,323.40
  5. Step 5: Solve for x
    x = 2,343,323.40/1,576.43
  6. Step 6: Final answer
    x = 1,486.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.