Home / 4,087.64-6,131.82-1,313.30

Finding the Fourth Proportional to 4,087.64, 6,131.82 and 1,313.30

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Solution

The fourth proportional to 4,087.64, 6,131.82 and 1,313.30 is: 1,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.64 : 6,131.82 = 1,313.30 : x
  2. Step 2: Convert to fraction form
    4,087.64/6,131.82 = 1,313.30/x
  3. Step 3: Cross multiply
    4,087.64x = 6,131.82 × 1,313.30
  4. Step 4: Simplify right side
    4,087.64x = 8,052,919.21
  5. Step 5: Solve for x
    x = 8,052,919.21/4,087.64
  6. Step 6: Final answer
    x = 1,970.07

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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.