Home / 3,776.44-5,662.83-1,311.40

Finding the Fourth Proportional to 3,776.44, 5,662.83 and 1,311.40

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Solution

The fourth proportional to 3,776.44, 5,662.83 and 1,311.40 is: 1,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.44 : 5,662.83 = 1,311.40 : x
  2. Step 2: Convert to fraction form
    3,776.44/5,662.83 = 1,311.40/x
  3. Step 3: Cross multiply
    3,776.44x = 5,662.83 × 1,311.40
  4. Step 4: Simplify right side
    3,776.44x = 7,426,235.26
  5. Step 5: Solve for x
    x = 7,426,235.26/3,776.44
  6. Step 6: Final answer
    x = 1,966.46

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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.