Home / 2,198.21-3,032.93-1,313.69

Finding the Fourth Proportional to 2,198.21, 3,032.93 and 1,313.69

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Solution

The fourth proportional to 2,198.21, 3,032.93 and 1,313.69 is: 1,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.21 : 3,032.93 = 1,313.69 : x
  2. Step 2: Convert to fraction form
    2,198.21/3,032.93 = 1,313.69/x
  3. Step 3: Cross multiply
    2,198.21x = 3,032.93 × 1,313.69
  4. Step 4: Simplify right side
    2,198.21x = 3,984,323.24
  5. Step 5: Solve for x
    x = 3,984,323.24/2,198.21
  6. Step 6: Final answer
    x = 1,812.53

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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.