Home / 2,197.40-3,033.18-1,313.48

Finding the Fourth Proportional to 2,197.40, 3,033.18 and 1,313.48

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Solution

The fourth proportional to 2,197.40, 3,033.18 and 1,313.48 is: 1,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.40 : 3,033.18 = 1,313.48 : x
  2. Step 2: Convert to fraction form
    2,197.40/3,033.18 = 1,313.48/x
  3. Step 3: Cross multiply
    2,197.40x = 3,033.18 × 1,313.48
  4. Step 4: Simplify right side
    2,197.40x = 3,984,028.85
  5. Step 5: Solve for x
    x = 3,984,028.85/2,197.40
  6. Step 6: Final answer
    x = 1,813.07

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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.