Home / 5,447.68-8,166.59-1,984.12

Finding the Fourth Proportional to 5,447.68, 8,166.59 and 1,984.12

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Solution

The fourth proportional to 5,447.68, 8,166.59 and 1,984.12 is: 2,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.68 : 8,166.59 = 1,984.12 : x
  2. Step 2: Convert to fraction form
    5,447.68/8,166.59 = 1,984.12/x
  3. Step 3: Cross multiply
    5,447.68x = 8,166.59 × 1,984.12
  4. Step 4: Simplify right side
    5,447.68x = 16,203,499.51
  5. Step 5: Solve for x
    x = 16,203,499.51/5,447.68
  6. Step 6: Final answer
    x = 2,974.39

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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.