Home / 6,150.30-9,223.20-1,991.40

Finding the Fourth Proportional to 6,150.30, 9,223.20 and 1,991.40

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Solution

The fourth proportional to 6,150.30, 9,223.20 and 1,991.40 is: 2,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,150.30 : 9,223.20 = 1,991.40 : x
  2. Step 2: Convert to fraction form
    6,150.30/9,223.20 = 1,991.40/x
  3. Step 3: Cross multiply
    6,150.30x = 9,223.20 × 1,991.40
  4. Step 4: Simplify right side
    6,150.30x = 18,367,080.48
  5. Step 5: Solve for x
    x = 18,367,080.48/6,150.30
  6. Step 6: Final answer
    x = 2,986.37

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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.