Home / 5,478.82-8,214.63-1,967.06

Finding the Fourth Proportional to 5,478.82, 8,214.63 and 1,967.06

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Solution

The fourth proportional to 5,478.82, 8,214.63 and 1,967.06 is: 2,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.82 : 8,214.63 = 1,967.06 : x
  2. Step 2: Convert to fraction form
    5,478.82/8,214.63 = 1,967.06/x
  3. Step 3: Cross multiply
    5,478.82x = 8,214.63 × 1,967.06
  4. Step 4: Simplify right side
    5,478.82x = 16,158,670.09
  5. Step 5: Solve for x
    x = 16,158,670.09/5,478.82
  6. Step 6: Final answer
    x = 2,949.30

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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.