Home / 1,282.32-1,912.68-1,074.48

Finding the Fourth Proportional to 1,282.32, 1,912.68 and 1,074.48

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Solution

The fourth proportional to 1,282.32, 1,912.68 and 1,074.48 is: 1,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.32 : 1,912.68 = 1,074.48 : x
  2. Step 2: Convert to fraction form
    1,282.32/1,912.68 = 1,074.48/x
  3. Step 3: Cross multiply
    1,282.32x = 1,912.68 × 1,074.48
  4. Step 4: Simplify right side
    1,282.32x = 2,055,136.41
  5. Step 5: Solve for x
    x = 2,055,136.41/1,282.32
  6. Step 6: Final answer
    x = 1,602.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.