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Finding the Fourth Proportional to 2,999.94, 4,498.20 and 1,243.94

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Solution

The fourth proportional to 2,999.94, 4,498.20 and 1,243.94 is: 1,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.94 : 4,498.20 = 1,243.94 : x
  2. Step 2: Convert to fraction form
    2,999.94/4,498.20 = 1,243.94/x
  3. Step 3: Cross multiply
    2,999.94x = 4,498.20 × 1,243.94
  4. Step 4: Simplify right side
    2,999.94x = 5,595,490.91
  5. Step 5: Solve for x
    x = 5,595,490.91/2,999.94
  6. Step 6: Final answer
    x = 1,865.20

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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.