Home / 2,675.24-4,011.50-1,288.54

Finding the Fourth Proportional to 2,675.24, 4,011.50 and 1,288.54

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Solution

The fourth proportional to 2,675.24, 4,011.50 and 1,288.54 is: 1,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.24 : 4,011.50 = 1,288.54 : x
  2. Step 2: Convert to fraction form
    2,675.24/4,011.50 = 1,288.54/x
  3. Step 3: Cross multiply
    2,675.24x = 4,011.50 × 1,288.54
  4. Step 4: Simplify right side
    2,675.24x = 5,168,978.21
  5. Step 5: Solve for x
    x = 5,168,978.21/2,675.24
  6. Step 6: Final answer
    x = 1,932.15

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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.