Home / 4,779.77-7,172.89-2,184.53

Finding the Fourth Proportional to 4,779.77, 7,172.89 and 2,184.53

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Solution

The fourth proportional to 4,779.77, 7,172.89 and 2,184.53 is: 3,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.77 : 7,172.89 = 2,184.53 : x
  2. Step 2: Convert to fraction form
    4,779.77/7,172.89 = 2,184.53/x
  3. Step 3: Cross multiply
    4,779.77x = 7,172.89 × 2,184.53
  4. Step 4: Simplify right side
    4,779.77x = 15,669,352.07
  5. Step 5: Solve for x
    x = 15,669,352.07/4,779.77
  6. Step 6: Final answer
    x = 3,278.27

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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.