Home / 5,978.21-8,967.54-2,279.95

Finding the Fourth Proportional to 5,978.21, 8,967.54 and 2,279.95

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Solution

The fourth proportional to 5,978.21, 8,967.54 and 2,279.95 is: 3,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.21 : 8,967.54 = 2,279.95 : x
  2. Step 2: Convert to fraction form
    5,978.21/8,967.54 = 2,279.95/x
  3. Step 3: Cross multiply
    5,978.21x = 8,967.54 × 2,279.95
  4. Step 4: Simplify right side
    5,978.21x = 20,445,528.95
  5. Step 5: Solve for x
    x = 20,445,528.95/5,978.21
  6. Step 6: Final answer
    x = 3,420.01

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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.