Home / 2,198.93-3,311.19-1,586.84

Finding the Fourth Proportional to 2,198.93, 3,311.19 and 1,586.84

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Solution

The fourth proportional to 2,198.93, 3,311.19 and 1,586.84 is: 2,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.93 : 3,311.19 = 1,586.84 : x
  2. Step 2: Convert to fraction form
    2,198.93/3,311.19 = 1,586.84/x
  3. Step 3: Cross multiply
    2,198.93x = 3,311.19 × 1,586.84
  4. Step 4: Simplify right side
    2,198.93x = 5,254,312.18
  5. Step 5: Solve for x
    x = 5,254,312.18/2,198.93
  6. Step 6: Final answer
    x = 2,389.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.