Home / 5,441.06-8,161.59-1,978.58

Finding the Fourth Proportional to 5,441.06, 8,161.59 and 1,978.58

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Solution

The fourth proportional to 5,441.06, 8,161.59 and 1,978.58 is: 2,967.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.06 : 8,161.59 = 1,978.58 : x
  2. Step 2: Convert to fraction form
    5,441.06/8,161.59 = 1,978.58/x
  3. Step 3: Cross multiply
    5,441.06x = 8,161.59 × 1,978.58
  4. Step 4: Simplify right side
    5,441.06x = 16,148,358.74
  5. Step 5: Solve for x
    x = 16,148,358.74/5,441.06
  6. Step 6: Final answer
    x = 2,967.87

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1.5x scale

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.