Home / 3,618.24-5,427.72-1,977.16

Finding the Fourth Proportional to 3,618.24, 5,427.72 and 1,977.16

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Solution

The fourth proportional to 3,618.24, 5,427.72 and 1,977.16 is: 2,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.24 : 5,427.72 = 1,977.16 : x
  2. Step 2: Convert to fraction form
    3,618.24/5,427.72 = 1,977.16/x
  3. Step 3: Cross multiply
    3,618.24x = 5,427.72 × 1,977.16
  4. Step 4: Simplify right side
    3,618.24x = 10,731,470.88
  5. Step 5: Solve for x
    x = 10,731,470.88/3,618.24
  6. Step 6: Final answer
    x = 2,965.94

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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.