Home / 5,479.37-8,218.98-3,720.02

Finding the Fourth Proportional to 5,479.37, 8,218.98 and 3,720.02

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Solution

The fourth proportional to 5,479.37, 8,218.98 and 3,720.02 is: 5,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.37 : 8,218.98 = 3,720.02 : x
  2. Step 2: Convert to fraction form
    5,479.37/8,218.98 = 3,720.02/x
  3. Step 3: Cross multiply
    5,479.37x = 8,218.98 × 3,720.02
  4. Step 4: Simplify right side
    5,479.37x = 30,574,769.98
  5. Step 5: Solve for x
    x = 30,574,769.98/5,479.37
  6. Step 6: Final answer
    x = 5,579.98

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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.