Home / 7,188.36-10,779.30-3,859.26

Finding the Fourth Proportional to 7,188.36, 10,779.30 and 3,859.26

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Solution

The fourth proportional to 7,188.36, 10,779.30 and 3,859.26 is: 5,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.36 : 10,779.30 = 3,859.26 : x
  2. Step 2: Convert to fraction form
    7,188.36/10,779.30 = 3,859.26/x
  3. Step 3: Cross multiply
    7,188.36x = 10,779.30 × 3,859.26
  4. Step 4: Simplify right side
    7,188.36x = 41,600,121.32
  5. Step 5: Solve for x
    x = 41,600,121.32/7,188.36
  6. Step 6: Final answer
    x = 5,787.15

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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.