Home / 1,779.18-2,455.83-1,219.44

Finding the Fourth Proportional to 1,779.18, 2,455.83 and 1,219.44

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Solution

The fourth proportional to 1,779.18, 2,455.83 and 1,219.44 is: 1,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.18 : 2,455.83 = 1,219.44 : x
  2. Step 2: Convert to fraction form
    1,779.18/2,455.83 = 1,219.44/x
  3. Step 3: Cross multiply
    1,779.18x = 2,455.83 × 1,219.44
  4. Step 4: Simplify right side
    1,779.18x = 2,994,737.34
  5. Step 5: Solve for x
    x = 2,994,737.34/1,779.18
  6. Step 6: Final answer
    x = 1,683.21

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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.