Home / 2,923.50-4,033.82-1,979.45

Finding the Fourth Proportional to 2,923.50, 4,033.82 and 1,979.45

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Solution

The fourth proportional to 2,923.50, 4,033.82 and 1,979.45 is: 2,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.50 : 4,033.82 = 1,979.45 : x
  2. Step 2: Convert to fraction form
    2,923.50/4,033.82 = 1,979.45/x
  3. Step 3: Cross multiply
    2,923.50x = 4,033.82 × 1,979.45
  4. Step 4: Simplify right side
    2,923.50x = 7,984,714.93
  5. Step 5: Solve for x
    x = 7,984,714.93/2,923.50
  6. Step 6: Final answer
    x = 2,731.22

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1.5x scale

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.