Home / 5,618.25-8,427.81-3,278.49

Finding the Fourth Proportional to 5,618.25, 8,427.81 and 3,278.49

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Solution

The fourth proportional to 5,618.25, 8,427.81 and 3,278.49 is: 4,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.25 : 8,427.81 = 3,278.49 : x
  2. Step 2: Convert to fraction form
    5,618.25/8,427.81 = 3,278.49/x
  3. Step 3: Cross multiply
    5,618.25x = 8,427.81 × 3,278.49
  4. Step 4: Simplify right side
    5,618.25x = 27,630,490.81
  5. Step 5: Solve for x
    x = 27,630,490.81/5,618.25
  6. Step 6: Final answer
    x = 4,917.99

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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.