Home / 7,990.07-11,985.65-2,442.98

Finding the Fourth Proportional to 7,990.07, 11,985.65 and 2,442.98

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Solution

The fourth proportional to 7,990.07, 11,985.65 and 2,442.98 is: 3,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.07 : 11,985.65 = 2,442.98 : x
  2. Step 2: Convert to fraction form
    7,990.07/11,985.65 = 2,442.98/x
  3. Step 3: Cross multiply
    7,990.07x = 11,985.65 × 2,442.98
  4. Step 4: Simplify right side
    7,990.07x = 29,280,739.31
  5. Step 5: Solve for x
    x = 29,280,739.31/7,990.07
  6. Step 6: Final answer
    x = 3,664.64

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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.