Home / 4,086.73-6,129.51-1,313.05

Finding the Fourth Proportional to 4,086.73, 6,129.51 and 1,313.05

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Solution

The fourth proportional to 4,086.73, 6,129.51 and 1,313.05 is: 1,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.73 : 6,129.51 = 1,313.05 : x
  2. Step 2: Convert to fraction form
    4,086.73/6,129.51 = 1,313.05/x
  3. Step 3: Cross multiply
    4,086.73x = 6,129.51 × 1,313.05
  4. Step 4: Simplify right side
    4,086.73x = 8,048,322.46
  5. Step 5: Solve for x
    x = 8,048,322.46/4,086.73
  6. Step 6: Final answer
    x = 1,969.38

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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.