Home / 1,620.82-2,236.35-1,202.14

Finding the Fourth Proportional to 1,620.82, 2,236.35 and 1,202.14

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Solution

The fourth proportional to 1,620.82, 2,236.35 and 1,202.14 is: 1,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.82 : 2,236.35 = 1,202.14 : x
  2. Step 2: Convert to fraction form
    1,620.82/2,236.35 = 1,202.14/x
  3. Step 3: Cross multiply
    1,620.82x = 2,236.35 × 1,202.14
  4. Step 4: Simplify right side
    1,620.82x = 2,688,405.79
  5. Step 5: Solve for x
    x = 2,688,405.79/1,620.82
  6. Step 6: Final answer
    x = 1,658.67

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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.