Home / 1,779.24-2,669.30-738.93

Finding the Fourth Proportional to 1,779.24, 2,669.30 and 738.93

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Solution

The fourth proportional to 1,779.24, 2,669.30 and 738.93 is: 1,108.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.24 : 2,669.30 = 738.93 : x
  2. Step 2: Convert to fraction form
    1,779.24/2,669.30 = 738.93/x
  3. Step 3: Cross multiply
    1,779.24x = 2,669.30 × 738.93
  4. Step 4: Simplify right side
    1,779.24x = 1,972,427.70
  5. Step 5: Solve for x
    x = 1,972,427.70/1,779.24
  6. Step 6: Final answer
    x = 1,108.58

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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.