Home / 5,185.58-7,779.74-2,719.71

Finding the Fourth Proportional to 5,185.58, 7,779.74 and 2,719.71

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Solution

The fourth proportional to 5,185.58, 7,779.74 and 2,719.71 is: 4,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.58 : 7,779.74 = 2,719.71 : x
  2. Step 2: Convert to fraction form
    5,185.58/7,779.74 = 2,719.71/x
  3. Step 3: Cross multiply
    5,185.58x = 7,779.74 × 2,719.71
  4. Step 4: Simplify right side
    5,185.58x = 21,158,623.08
  5. Step 5: Solve for x
    x = 21,158,623.08/5,185.58
  6. Step 6: Final answer
    x = 4,080.28

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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.