Home / 4,121.88-5,688-2,353.44

Finding the Fourth Proportional to 4,121.88, 5,688 and 2,353.44

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Solution

The fourth proportional to 4,121.88, 5,688 and 2,353.44 is: 3,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.88 : 5,688 = 2,353.44 : x
  2. Step 2: Convert to fraction form
    4,121.88/5,688 = 2,353.44/x
  3. Step 3: Cross multiply
    4,121.88x = 5,688 × 2,353.44
  4. Step 4: Simplify right side
    4,121.88x = 13,386,366.72
  5. Step 5: Solve for x
    x = 13,386,366.72/4,121.88
  6. Step 6: Final answer
    x = 3,247.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.