Home / 1,260.73-1,738.56-1,137.67

Finding the Fourth Proportional to 1,260.73, 1,738.56 and 1,137.67

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Solution

The fourth proportional to 1,260.73, 1,738.56 and 1,137.67 is: 1,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.73 : 1,738.56 = 1,137.67 : x
  2. Step 2: Convert to fraction form
    1,260.73/1,738.56 = 1,137.67/x
  3. Step 3: Cross multiply
    1,260.73x = 1,738.56 × 1,137.67
  4. Step 4: Simplify right side
    1,260.73x = 1,977,907.56
  5. Step 5: Solve for x
    x = 1,977,907.56/1,260.73
  6. Step 6: Final answer
    x = 1,568.86

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Half scale
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Double scale
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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.