Home / 2,976.39-4,106.43-1,856.43

Finding the Fourth Proportional to 2,976.39, 4,106.43 and 1,856.43

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Solution

The fourth proportional to 2,976.39, 4,106.43 and 1,856.43 is: 2,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.39 : 4,106.43 = 1,856.43 : x
  2. Step 2: Convert to fraction form
    2,976.39/4,106.43 = 1,856.43/x
  3. Step 3: Cross multiply
    2,976.39x = 4,106.43 × 1,856.43
  4. Step 4: Simplify right side
    2,976.39x = 7,623,299.84
  5. Step 5: Solve for x
    x = 7,623,299.84/2,976.39
  6. Step 6: Final answer
    x = 2,561.26

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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.