Home / 2,199.06-3,300.90-1,323.70

Finding the Fourth Proportional to 2,199.06, 3,300.90 and 1,323.70

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Solution

The fourth proportional to 2,199.06, 3,300.90 and 1,323.70 is: 1,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.06 : 3,300.90 = 1,323.70 : x
  2. Step 2: Convert to fraction form
    2,199.06/3,300.90 = 1,323.70/x
  3. Step 3: Cross multiply
    2,199.06x = 3,300.90 × 1,323.70
  4. Step 4: Simplify right side
    2,199.06x = 4,369,393.08
  5. Step 5: Solve for x
    x = 4,369,393.08/2,199.06
  6. Step 6: Final answer
    x = 1,986.94

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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.