Home / 5,478.99-8,219.86-1,583.37

Finding the Fourth Proportional to 5,478.99, 8,219.86 and 1,583.37

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Solution

The fourth proportional to 5,478.99, 8,219.86 and 1,583.37 is: 2,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.99 : 8,219.86 = 1,583.37 : x
  2. Step 2: Convert to fraction form
    5,478.99/8,219.86 = 1,583.37/x
  3. Step 3: Cross multiply
    5,478.99x = 8,219.86 × 1,583.37
  4. Step 4: Simplify right side
    5,478.99x = 13,015,034.67
  5. Step 5: Solve for x
    x = 13,015,034.67/5,478.99
  6. Step 6: Final answer
    x = 2,375.45

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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.