Home / 5,478.20-7,559.91-2,994.20

Finding the Fourth Proportional to 5,478.20, 7,559.91 and 2,994.20

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Solution

The fourth proportional to 5,478.20, 7,559.91 and 2,994.20 is: 4,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.20 : 7,559.91 = 2,994.20 : x
  2. Step 2: Convert to fraction form
    5,478.20/7,559.91 = 2,994.20/x
  3. Step 3: Cross multiply
    5,478.20x = 7,559.91 × 2,994.20
  4. Step 4: Simplify right side
    5,478.20x = 22,635,844.72
  5. Step 5: Solve for x
    x = 22,635,844.72/5,478.20
  6. Step 6: Final answer
    x = 4,131.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.