Home / 2,215.04-3,326.49-1,976.90

Finding the Fourth Proportional to 2,215.04, 3,326.49 and 1,976.90

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Solution

The fourth proportional to 2,215.04, 3,326.49 and 1,976.90 is: 2,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.04 : 3,326.49 = 1,976.90 : x
  2. Step 2: Convert to fraction form
    2,215.04/3,326.49 = 1,976.90/x
  3. Step 3: Cross multiply
    2,215.04x = 3,326.49 × 1,976.90
  4. Step 4: Simplify right side
    2,215.04x = 6,576,121.45
  5. Step 5: Solve for x
    x = 6,576,121.45/2,215.04
  6. Step 6: Final answer
    x = 2,968.86

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1.5x scale

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.