Home / 5,441.34-8,162.64-1,979.40

Finding the Fourth Proportional to 5,441.34, 8,162.64 and 1,979.40

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Solution

The fourth proportional to 5,441.34, 8,162.64 and 1,979.40 is: 2,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.34 : 8,162.64 = 1,979.40 : x
  2. Step 2: Convert to fraction form
    5,441.34/8,162.64 = 1,979.40/x
  3. Step 3: Cross multiply
    5,441.34x = 8,162.64 × 1,979.40
  4. Step 4: Simplify right side
    5,441.34x = 16,157,129.62
  5. Step 5: Solve for x
    x = 16,157,129.62/5,441.34
  6. Step 6: Final answer
    x = 2,969.33

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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.