Home / 1,828.19-2,740.65-673.67

Finding the Fourth Proportional to 1,828.19, 2,740.65 and 673.67

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Solution

The fourth proportional to 1,828.19, 2,740.65 and 673.67 is: 1,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.19 : 2,740.65 = 673.67 : x
  2. Step 2: Convert to fraction form
    1,828.19/2,740.65 = 673.67/x
  3. Step 3: Cross multiply
    1,828.19x = 2,740.65 × 673.67
  4. Step 4: Simplify right side
    1,828.19x = 1,846,279.98
  5. Step 5: Solve for x
    x = 1,846,279.98/1,828.19
  6. Step 6: Final answer
    x = 1,009.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.