Home / 3,392.60-5,087.28-1,313.57

Finding the Fourth Proportional to 3,392.60, 5,087.28 and 1,313.57

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Solution

The fourth proportional to 3,392.60, 5,087.28 and 1,313.57 is: 1,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.60 : 5,087.28 = 1,313.57 : x
  2. Step 2: Convert to fraction form
    3,392.60/5,087.28 = 1,313.57/x
  3. Step 3: Cross multiply
    3,392.60x = 5,087.28 × 1,313.57
  4. Step 4: Simplify right side
    3,392.60x = 6,682,516.03
  5. Step 5: Solve for x
    x = 6,682,516.03/3,392.60
  6. Step 6: Final answer
    x = 1,969.74

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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.