Home / 2,281.96-3,148.42-1,396.84

Finding the Fourth Proportional to 2,281.96, 3,148.42 and 1,396.84

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Solution

The fourth proportional to 2,281.96, 3,148.42 and 1,396.84 is: 1,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.96 : 3,148.42 = 1,396.84 : x
  2. Step 2: Convert to fraction form
    2,281.96/3,148.42 = 1,396.84/x
  3. Step 3: Cross multiply
    2,281.96x = 3,148.42 × 1,396.84
  4. Step 4: Simplify right side
    2,281.96x = 4,397,838.99
  5. Step 5: Solve for x
    x = 4,397,838.99/2,281.96
  6. Step 6: Final answer
    x = 1,927.22

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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.