Home / 5,478.02-8,220.98-2,192.03

Finding the Fourth Proportional to 5,478.02, 8,220.98 and 2,192.03

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Solution

The fourth proportional to 5,478.02, 8,220.98 and 2,192.03 is: 3,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.02 : 8,220.98 = 2,192.03 : x
  2. Step 2: Convert to fraction form
    5,478.02/8,220.98 = 2,192.03/x
  3. Step 3: Cross multiply
    5,478.02x = 8,220.98 × 2,192.03
  4. Step 4: Simplify right side
    5,478.02x = 18,020,599.16
  5. Step 5: Solve for x
    x = 18,020,599.16/5,478.02
  6. Step 6: Final answer
    x = 3,289.62

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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.