Home / 6,985.38-10,474.02-2,821.98

Finding the Fourth Proportional to 6,985.38, 10,474.02 and 2,821.98

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Solution

The fourth proportional to 6,985.38, 10,474.02 and 2,821.98 is: 4,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.38 : 10,474.02 = 2,821.98 : x
  2. Step 2: Convert to fraction form
    6,985.38/10,474.02 = 2,821.98/x
  3. Step 3: Cross multiply
    6,985.38x = 10,474.02 × 2,821.98
  4. Step 4: Simplify right side
    6,985.38x = 29,557,474.96
  5. Step 5: Solve for x
    x = 29,557,474.96/6,985.38
  6. Step 6: Final answer
    x = 4,231.33

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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.