Home / 5,669.68-7,821.63-3,779.43

Finding the Fourth Proportional to 5,669.68, 7,821.63 and 3,779.43

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Solution

The fourth proportional to 5,669.68, 7,821.63 and 3,779.43 is: 5,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.68 : 7,821.63 = 3,779.43 : x
  2. Step 2: Convert to fraction form
    5,669.68/7,821.63 = 3,779.43/x
  3. Step 3: Cross multiply
    5,669.68x = 7,821.63 × 3,779.43
  4. Step 4: Simplify right side
    5,669.68x = 29,561,303.07
  5. Step 5: Solve for x
    x = 29,561,303.07/5,669.68
  6. Step 6: Final answer
    x = 5,213.93

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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.