Home / 3,672.75-5,509.40-1,207.52

Finding the Fourth Proportional to 3,672.75, 5,509.40 and 1,207.52

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Solution

The fourth proportional to 3,672.75, 5,509.40 and 1,207.52 is: 1,811.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.75 : 5,509.40 = 1,207.52 : x
  2. Step 2: Convert to fraction form
    3,672.75/5,509.40 = 1,207.52/x
  3. Step 3: Cross multiply
    3,672.75x = 5,509.40 × 1,207.52
  4. Step 4: Simplify right side
    3,672.75x = 6,652,710.69
  5. Step 5: Solve for x
    x = 6,652,710.69/3,672.75
  6. Step 6: Final answer
    x = 1,811.37

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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.