Home / 1,571.96-2,168.36-1,012.24

Finding the Fourth Proportional to 1,571.96, 2,168.36 and 1,012.24

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Solution

The fourth proportional to 1,571.96, 2,168.36 and 1,012.24 is: 1,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.96 : 2,168.36 = 1,012.24 : x
  2. Step 2: Convert to fraction form
    1,571.96/2,168.36 = 1,012.24/x
  3. Step 3: Cross multiply
    1,571.96x = 2,168.36 × 1,012.24
  4. Step 4: Simplify right side
    1,571.96x = 2,194,900.73
  5. Step 5: Solve for x
    x = 2,194,900.73/1,571.96
  6. Step 6: Final answer
    x = 1,396.28

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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.