Home / 2,254.22-3,109.98-1,369.70

Finding the Fourth Proportional to 2,254.22, 3,109.98 and 1,369.70

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Solution

The fourth proportional to 2,254.22, 3,109.98 and 1,369.70 is: 1,889.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.22 : 3,109.98 = 1,369.70 : x
  2. Step 2: Convert to fraction form
    2,254.22/3,109.98 = 1,369.70/x
  3. Step 3: Cross multiply
    2,254.22x = 3,109.98 × 1,369.70
  4. Step 4: Simplify right side
    2,254.22x = 4,259,739.61
  5. Step 5: Solve for x
    x = 4,259,739.61/2,254.22
  6. Step 6: Final answer
    x = 1,889.67

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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.