Home / 1,192.34-1,789.67-1,126.60

Finding the Fourth Proportional to 1,192.34, 1,789.67 and 1,126.60

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Solution

The fourth proportional to 1,192.34, 1,789.67 and 1,126.60 is: 1,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.34 : 1,789.67 = 1,126.60 : x
  2. Step 2: Convert to fraction form
    1,192.34/1,789.67 = 1,126.60/x
  3. Step 3: Cross multiply
    1,192.34x = 1,789.67 × 1,126.60
  4. Step 4: Simplify right side
    1,192.34x = 2,016,240.56
  5. Step 5: Solve for x
    x = 2,016,240.56/1,192.34
  6. Step 6: Final answer
    x = 1,690.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.