Home / 2,199.21-3,034.30-1,314.69

Finding the Fourth Proportional to 2,199.21, 3,034.30 and 1,314.69

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Solution

The fourth proportional to 2,199.21, 3,034.30 and 1,314.69 is: 1,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.21 : 3,034.30 = 1,314.69 : x
  2. Step 2: Convert to fraction form
    2,199.21/3,034.30 = 1,314.69/x
  3. Step 3: Cross multiply
    2,199.21x = 3,034.30 × 1,314.69
  4. Step 4: Simplify right side
    2,199.21x = 3,989,163.87
  5. Step 5: Solve for x
    x = 3,989,163.87/2,199.21
  6. Step 6: Final answer
    x = 1,813.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.