Home / 2,991.94-4,487.68-1,143.01

Finding the Fourth Proportional to 2,991.94, 4,487.68 and 1,143.01

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Solution

The fourth proportional to 2,991.94, 4,487.68 and 1,143.01 is: 1,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.94 : 4,487.68 = 1,143.01 : x
  2. Step 2: Convert to fraction form
    2,991.94/4,487.68 = 1,143.01/x
  3. Step 3: Cross multiply
    2,991.94x = 4,487.68 × 1,143.01
  4. Step 4: Simplify right side
    2,991.94x = 5,129,466.94
  5. Step 5: Solve for x
    x = 5,129,466.94/2,991.94
  6. Step 6: Final answer
    x = 1,714.43

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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.