Home / 4,176.16-6,255.73-1,978.23

Finding the Fourth Proportional to 4,176.16, 6,255.73 and 1,978.23

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Solution

The fourth proportional to 4,176.16, 6,255.73 and 1,978.23 is: 2,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176.16 : 6,255.73 = 1,978.23 : x
  2. Step 2: Convert to fraction form
    4,176.16/6,255.73 = 1,978.23/x
  3. Step 3: Cross multiply
    4,176.16x = 6,255.73 × 1,978.23
  4. Step 4: Simplify right side
    4,176.16x = 12,375,272.76
  5. Step 5: Solve for x
    x = 12,375,272.76/4,176.16
  6. Step 6: Final answer
    x = 2,963.31

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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.