Home / 2,976.93-4,108.79-1,899.99

Finding the Fourth Proportional to 2,976.93, 4,108.79 and 1,899.99

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Solution

The fourth proportional to 2,976.93, 4,108.79 and 1,899.99 is: 2,622.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.93 : 4,108.79 = 1,899.99 : x
  2. Step 2: Convert to fraction form
    2,976.93/4,108.79 = 1,899.99/x
  3. Step 3: Cross multiply
    2,976.93x = 4,108.79 × 1,899.99
  4. Step 4: Simplify right side
    2,976.93x = 7,806,664.66
  5. Step 5: Solve for x
    x = 7,806,664.66/2,976.93
  6. Step 6: Final answer
    x = 2,622.39

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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.