Home / 1,991.04-2,986.44-604.36

Finding the Fourth Proportional to 1,991.04, 2,986.44 and 604.36

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Solution

The fourth proportional to 1,991.04, 2,986.44 and 604.36 is: 906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991.04 : 2,986.44 = 604.36 : x
  2. Step 2: Convert to fraction form
    1,991.04/2,986.44 = 604.36/x
  3. Step 3: Cross multiply
    1,991.04x = 2,986.44 × 604.36
  4. Step 4: Simplify right side
    1,991.04x = 1,804,884.88
  5. Step 5: Solve for x
    x = 1,804,884.88/1,991.04
  6. Step 6: Final answer
    x = 906.50

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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.