Home / 2,262.60-3,122.30-1,267.70

Finding the Fourth Proportional to 2,262.60, 3,122.30 and 1,267.70

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Solution

The fourth proportional to 2,262.60, 3,122.30 and 1,267.70 is: 1,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.60 : 3,122.30 = 1,267.70 : x
  2. Step 2: Convert to fraction form
    2,262.60/3,122.30 = 1,267.70/x
  3. Step 3: Cross multiply
    2,262.60x = 3,122.30 × 1,267.70
  4. Step 4: Simplify right side
    2,262.60x = 3,958,117.76
  5. Step 5: Solve for x
    x = 3,958,117.76/2,262.60
  6. Step 6: Final answer
    x = 1,749.37

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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.