Home / 7,989.16-11,985.70-2,442.60

Finding the Fourth Proportional to 7,989.16, 11,985.70 and 2,442.60

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Solution

The fourth proportional to 7,989.16, 11,985.70 and 2,442.60 is: 3,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.16 : 11,985.70 = 2,442.60 : x
  2. Step 2: Convert to fraction form
    7,989.16/11,985.70 = 2,442.60/x
  3. Step 3: Cross multiply
    7,989.16x = 11,985.70 × 2,442.60
  4. Step 4: Simplify right side
    7,989.16x = 29,276,270.82
  5. Step 5: Solve for x
    x = 29,276,270.82/7,989.16
  6. Step 6: Final answer
    x = 3,664.50

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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.