Home / 4,779.51-7,171.98-1,857.42

Finding the Fourth Proportional to 4,779.51, 7,171.98 and 1,857.42

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Solution

The fourth proportional to 4,779.51, 7,171.98 and 1,857.42 is: 2,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.51 : 7,171.98 = 1,857.42 : x
  2. Step 2: Convert to fraction form
    4,779.51/7,171.98 = 1,857.42/x
  3. Step 3: Cross multiply
    4,779.51x = 7,171.98 × 1,857.42
  4. Step 4: Simplify right side
    4,779.51x = 13,321,379.09
  5. Step 5: Solve for x
    x = 13,321,379.09/4,779.51
  6. Step 6: Final answer
    x = 2,787.19

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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.