Home / 7,989.28-11,985.44-2,442

Finding the Fourth Proportional to 7,989.28, 11,985.44 and 2,442

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Solution

The fourth proportional to 7,989.28, 11,985.44 and 2,442 is: 3,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.28 : 11,985.44 = 2,442 : x
  2. Step 2: Convert to fraction form
    7,989.28/11,985.44 = 2,442/x
  3. Step 3: Cross multiply
    7,989.28x = 11,985.44 × 2,442
  4. Step 4: Simplify right side
    7,989.28x = 29,268,444.48
  5. Step 5: Solve for x
    x = 29,268,444.48/7,989.28
  6. Step 6: Final answer
    x = 3,663.46

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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.