Home / 2,678.72-4,012.92-1,525.28

Finding the Fourth Proportional to 2,678.72, 4,012.92 and 1,525.28

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Solution

The fourth proportional to 2,678.72, 4,012.92 and 1,525.28 is: 2,284.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.72 : 4,012.92 = 1,525.28 : x
  2. Step 2: Convert to fraction form
    2,678.72/4,012.92 = 1,525.28/x
  3. Step 3: Cross multiply
    2,678.72x = 4,012.92 × 1,525.28
  4. Step 4: Simplify right side
    2,678.72x = 6,120,826.62
  5. Step 5: Solve for x
    x = 6,120,826.62/2,678.72
  6. Step 6: Final answer
    x = 2,284.98

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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.