Home / 2,060.40-3,090.51-673.80

Finding the Fourth Proportional to 2,060.40, 3,090.51 and 673.80

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Solution

The fourth proportional to 2,060.40, 3,090.51 and 673.80 is: 1,010.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.40 : 3,090.51 = 673.80 : x
  2. Step 2: Convert to fraction form
    2,060.40/3,090.51 = 673.80/x
  3. Step 3: Cross multiply
    2,060.40x = 3,090.51 × 673.80
  4. Step 4: Simplify right side
    2,060.40x = 2,082,385.64
  5. Step 5: Solve for x
    x = 2,082,385.64/2,060.40
  6. Step 6: Final answer
    x = 1,010.67

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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.