Home / 5,185.45-7,779.51-1,487.94

Finding the Fourth Proportional to 5,185.45, 7,779.51 and 1,487.94

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Solution

The fourth proportional to 5,185.45, 7,779.51 and 1,487.94 is: 2,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.45 : 7,779.51 = 1,487.94 : x
  2. Step 2: Convert to fraction form
    5,185.45/7,779.51 = 1,487.94/x
  3. Step 3: Cross multiply
    5,185.45x = 7,779.51 × 1,487.94
  4. Step 4: Simplify right side
    5,185.45x = 11,575,414.94
  5. Step 5: Solve for x
    x = 11,575,414.94/5,185.45
  6. Step 6: Final answer
    x = 2,232.29

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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.