Home / 2,976.12-4,106.52-1,796.40

Finding the Fourth Proportional to 2,976.12, 4,106.52 and 1,796.40

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Solution

The fourth proportional to 2,976.12, 4,106.52 and 1,796.40 is: 2,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.12 : 4,106.52 = 1,796.40 : x
  2. Step 2: Convert to fraction form
    2,976.12/4,106.52 = 1,796.40/x
  3. Step 3: Cross multiply
    2,976.12x = 4,106.52 × 1,796.40
  4. Step 4: Simplify right side
    2,976.12x = 7,376,952.53
  5. Step 5: Solve for x
    x = 7,376,952.53/2,976.12
  6. Step 6: Final answer
    x = 2,478.71

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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.