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Finding the Fourth Proportional to 4,999.50, 7,495.20 and 2,079.99

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Solution

The fourth proportional to 4,999.50, 7,495.20 and 2,079.99 is: 3,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.50 : 7,495.20 = 2,079.99 : x
  2. Step 2: Convert to fraction form
    4,999.50/7,495.20 = 2,079.99/x
  3. Step 3: Cross multiply
    4,999.50x = 7,495.20 × 2,079.99
  4. Step 4: Simplify right side
    4,999.50x = 15,589,941.05
  5. Step 5: Solve for x
    x = 15,589,941.05/4,999.50
  6. Step 6: Final answer
    x = 3,118.30

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1.5x scale

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.