Home / 2,855.32-4,283.58-1,211.83

Finding the Fourth Proportional to 2,855.32, 4,283.58 and 1,211.83

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Solution

The fourth proportional to 2,855.32, 4,283.58 and 1,211.83 is: 1,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.32 : 4,283.58 = 1,211.83 : x
  2. Step 2: Convert to fraction form
    2,855.32/4,283.58 = 1,211.83/x
  3. Step 3: Cross multiply
    2,855.32x = 4,283.58 × 1,211.83
  4. Step 4: Simplify right side
    2,855.32x = 5,190,970.75
  5. Step 5: Solve for x
    x = 5,190,970.75/2,855.32
  6. Step 6: Final answer
    x = 1,818.00

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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.