Home / 2,029.12-2,799.92-1,189.67

Finding the Fourth Proportional to 2,029.12, 2,799.92 and 1,189.67

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Solution

The fourth proportional to 2,029.12, 2,799.92 and 1,189.67 is: 1,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.12 : 2,799.92 = 1,189.67 : x
  2. Step 2: Convert to fraction form
    2,029.12/2,799.92 = 1,189.67/x
  3. Step 3: Cross multiply
    2,029.12x = 2,799.92 × 1,189.67
  4. Step 4: Simplify right side
    2,029.12x = 3,330,969.80
  5. Step 5: Solve for x
    x = 3,330,969.80/2,029.12
  6. Step 6: Final answer
    x = 1,641.59

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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.