Home / 5,441.20-8,156.86-1,976

Finding the Fourth Proportional to 5,441.20, 8,156.86 and 1,976

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Solution

The fourth proportional to 5,441.20, 8,156.86 and 1,976 is: 2,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.20 : 8,156.86 = 1,976 : x
  2. Step 2: Convert to fraction form
    5,441.20/8,156.86 = 1,976/x
  3. Step 3: Cross multiply
    5,441.20x = 8,156.86 × 1,976
  4. Step 4: Simplify right side
    5,441.20x = 16,117,955.36
  5. Step 5: Solve for x
    x = 16,117,955.36/5,441.20
  6. Step 6: Final answer
    x = 2,962.21

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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.