Home / 3,314.57-4,968.75-1,121.76

Finding the Fourth Proportional to 3,314.57, 4,968.75 and 1,121.76

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Solution

The fourth proportional to 3,314.57, 4,968.75 and 1,121.76 is: 1,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.57 : 4,968.75 = 1,121.76 : x
  2. Step 2: Convert to fraction form
    3,314.57/4,968.75 = 1,121.76/x
  3. Step 3: Cross multiply
    3,314.57x = 4,968.75 × 1,121.76
  4. Step 4: Simplify right side
    3,314.57x = 5,573,749.21
  5. Step 5: Solve for x
    x = 5,573,749.21/3,314.57
  6. Step 6: Final answer
    x = 1,681.59

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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.