Home / 1,520.49-2,096.76-1,121.48

Finding the Fourth Proportional to 1,520.49, 2,096.76 and 1,121.48

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Solution

The fourth proportional to 1,520.49, 2,096.76 and 1,121.48 is: 1,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.49 : 2,096.76 = 1,121.48 : x
  2. Step 2: Convert to fraction form
    1,520.49/2,096.76 = 1,121.48/x
  3. Step 3: Cross multiply
    1,520.49x = 2,096.76 × 1,121.48
  4. Step 4: Simplify right side
    1,520.49x = 2,351,463.92
  5. Step 5: Solve for x
    x = 2,351,463.92/1,520.49
  6. Step 6: Final answer
    x = 1,546.52

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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.