Home / 5,188.18-7,782.96-1,855.44

Finding the Fourth Proportional to 5,188.18, 7,782.96 and 1,855.44

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Solution

The fourth proportional to 5,188.18, 7,782.96 and 1,855.44 is: 2,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.18 : 7,782.96 = 1,855.44 : x
  2. Step 2: Convert to fraction form
    5,188.18/7,782.96 = 1,855.44/x
  3. Step 3: Cross multiply
    5,188.18x = 7,782.96 × 1,855.44
  4. Step 4: Simplify right side
    5,188.18x = 14,440,815.30
  5. Step 5: Solve for x
    x = 14,440,815.30/5,188.18
  6. Step 6: Final answer
    x = 2,783.41

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1.5x scale

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.