Home / 2,189.84-3,022.26-1,258.34

Finding the Fourth Proportional to 2,189.84, 3,022.26 and 1,258.34

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Solution

The fourth proportional to 2,189.84, 3,022.26 and 1,258.34 is: 1,736.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.84 : 3,022.26 = 1,258.34 : x
  2. Step 2: Convert to fraction form
    2,189.84/3,022.26 = 1,258.34/x
  3. Step 3: Cross multiply
    2,189.84x = 3,022.26 × 1,258.34
  4. Step 4: Simplify right side
    2,189.84x = 3,803,030.65
  5. Step 5: Solve for x
    x = 3,803,030.65/2,189.84
  6. Step 6: Final answer
    x = 1,736.67

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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.