Home / 1,779.48-2,669.40-481.08

Finding the Fourth Proportional to 1,779.48, 2,669.40 and 481.08

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Solution

The fourth proportional to 1,779.48, 2,669.40 and 481.08 is: 721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.48 : 2,669.40 = 481.08 : x
  2. Step 2: Convert to fraction form
    1,779.48/2,669.40 = 481.08/x
  3. Step 3: Cross multiply
    1,779.48x = 2,669.40 × 481.08
  4. Step 4: Simplify right side
    1,779.48x = 1,284,194.95
  5. Step 5: Solve for x
    x = 1,284,194.95/1,779.48
  6. Step 6: Final answer
    x = 721.67

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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.