Home / 3,121.36-4,681.24-1,173.52

Finding the Fourth Proportional to 3,121.36, 4,681.24 and 1,173.52

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Solution

The fourth proportional to 3,121.36, 4,681.24 and 1,173.52 is: 1,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.36 : 4,681.24 = 1,173.52 : x
  2. Step 2: Convert to fraction form
    3,121.36/4,681.24 = 1,173.52/x
  3. Step 3: Cross multiply
    3,121.36x = 4,681.24 × 1,173.52
  4. Step 4: Simplify right side
    3,121.36x = 5,493,528.76
  5. Step 5: Solve for x
    x = 5,493,528.76/3,121.36
  6. Step 6: Final answer
    x = 1,759.98

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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.