Home / 5,185.88-7,779.72-2,412.02

Finding the Fourth Proportional to 5,185.88, 7,779.72 and 2,412.02

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Solution

The fourth proportional to 5,185.88, 7,779.72 and 2,412.02 is: 3,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.88 : 7,779.72 = 2,412.02 : x
  2. Step 2: Convert to fraction form
    5,185.88/7,779.72 = 2,412.02/x
  3. Step 3: Cross multiply
    5,185.88x = 7,779.72 × 2,412.02
  4. Step 4: Simplify right side
    5,185.88x = 18,764,840.23
  5. Step 5: Solve for x
    x = 18,764,840.23/5,185.88
  6. Step 6: Final answer
    x = 3,618.45

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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.