Home / 1,576.55-2,172.96-1,078.33

Finding the Fourth Proportional to 1,576.55, 2,172.96 and 1,078.33

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Solution

The fourth proportional to 1,576.55, 2,172.96 and 1,078.33 is: 1,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.55 : 2,172.96 = 1,078.33 : x
  2. Step 2: Convert to fraction form
    1,576.55/2,172.96 = 1,078.33/x
  3. Step 3: Cross multiply
    1,576.55x = 2,172.96 × 1,078.33
  4. Step 4: Simplify right side
    1,576.55x = 2,343,167.96
  5. Step 5: Solve for x
    x = 2,343,167.96/1,576.55
  6. Step 6: Final answer
    x = 1,486.26

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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.