Home / 3,779.61-5,669.42-1,439.06

Finding the Fourth Proportional to 3,779.61, 5,669.42 and 1,439.06

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Solution

The fourth proportional to 3,779.61, 5,669.42 and 1,439.06 is: 2,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.61 : 5,669.42 = 1,439.06 : x
  2. Step 2: Convert to fraction form
    3,779.61/5,669.42 = 1,439.06/x
  3. Step 3: Cross multiply
    3,779.61x = 5,669.42 × 1,439.06
  4. Step 4: Simplify right side
    3,779.61x = 8,158,647.92
  5. Step 5: Solve for x
    x = 8,158,647.92/3,779.61
  6. Step 6: Final answer
    x = 2,158.60

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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.