Home / 3,855.18-5,779.08-2,539.95

Finding the Fourth Proportional to 3,855.18, 5,779.08 and 2,539.95

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Solution

The fourth proportional to 3,855.18, 5,779.08 and 2,539.95 is: 3,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.18 : 5,779.08 = 2,539.95 : x
  2. Step 2: Convert to fraction form
    3,855.18/5,779.08 = 2,539.95/x
  3. Step 3: Cross multiply
    3,855.18x = 5,779.08 × 2,539.95
  4. Step 4: Simplify right side
    3,855.18x = 14,678,574.25
  5. Step 5: Solve for x
    x = 14,678,574.25/3,855.18
  6. Step 6: Final answer
    x = 3,807.49

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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.