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Finding the Fourth Proportional to 5,280.98, 7,923.28 and 1,995.02

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Solution

The fourth proportional to 5,280.98, 7,923.28 and 1,995.02 is: 2,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.98 : 7,923.28 = 1,995.02 : x
  2. Step 2: Convert to fraction form
    5,280.98/7,923.28 = 1,995.02/x
  3. Step 3: Cross multiply
    5,280.98x = 7,923.28 × 1,995.02
  4. Step 4: Simplify right side
    5,280.98x = 15,807,102.07
  5. Step 5: Solve for x
    x = 15,807,102.07/5,280.98
  6. Step 6: Final answer
    x = 2,993.21

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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.