Home / 3,106.05-4,285.37-1,779.53

Finding the Fourth Proportional to 3,106.05, 4,285.37 and 1,779.53

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Solution

The fourth proportional to 3,106.05, 4,285.37 and 1,779.53 is: 2,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.05 : 4,285.37 = 1,779.53 : x
  2. Step 2: Convert to fraction form
    3,106.05/4,285.37 = 1,779.53/x
  3. Step 3: Cross multiply
    3,106.05x = 4,285.37 × 1,779.53
  4. Step 4: Simplify right side
    3,106.05x = 7,625,914.15
  5. Step 5: Solve for x
    x = 7,625,914.15/3,106.05
  6. Step 6: Final answer
    x = 2,455.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.