Home / 2,976.79-4,102.30-2,180.35

Finding the Fourth Proportional to 2,976.79, 4,102.30 and 2,180.35

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Solution

The fourth proportional to 2,976.79, 4,102.30 and 2,180.35 is: 3,004.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.79 : 4,102.30 = 2,180.35 : x
  2. Step 2: Convert to fraction form
    2,976.79/4,102.30 = 2,180.35/x
  3. Step 3: Cross multiply
    2,976.79x = 4,102.30 × 2,180.35
  4. Step 4: Simplify right side
    2,976.79x = 8,944,460.06
  5. Step 5: Solve for x
    x = 8,944,460.06/2,976.79
  6. Step 6: Final answer
    x = 3,004.74

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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.