Home / 5,478.94-8,218.46-1,583.35

Finding the Fourth Proportional to 5,478.94, 8,218.46 and 1,583.35

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Solution

The fourth proportional to 5,478.94, 8,218.46 and 1,583.35 is: 2,375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.94 : 8,218.46 = 1,583.35 : x
  2. Step 2: Convert to fraction form
    5,478.94/8,218.46 = 1,583.35/x
  3. Step 3: Cross multiply
    5,478.94x = 8,218.46 × 1,583.35
  4. Step 4: Simplify right side
    5,478.94x = 13,012,682.05
  5. Step 5: Solve for x
    x = 13,012,682.05/5,478.94
  6. Step 6: Final answer
    x = 2,375.04

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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.