Home / 5,427.40-8,116.70-3,965.08

Finding the Fourth Proportional to 5,427.40, 8,116.70 and 3,965.08

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Solution

The fourth proportional to 5,427.40, 8,116.70 and 3,965.08 is: 5,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.40 : 8,116.70 = 3,965.08 : x
  2. Step 2: Convert to fraction form
    5,427.40/8,116.70 = 3,965.08/x
  3. Step 3: Cross multiply
    5,427.40x = 8,116.70 × 3,965.08
  4. Step 4: Simplify right side
    5,427.40x = 32,183,364.84
  5. Step 5: Solve for x
    x = 32,183,364.84/5,427.40
  6. Step 6: Final answer
    x = 5,929.79

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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.