Home / 3,217.49-4,826.81-1,138.70

Finding the Fourth Proportional to 3,217.49, 4,826.81 and 1,138.70

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Solution

The fourth proportional to 3,217.49, 4,826.81 and 1,138.70 is: 1,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.49 : 4,826.81 = 1,138.70 : x
  2. Step 2: Convert to fraction form
    3,217.49/4,826.81 = 1,138.70/x
  3. Step 3: Cross multiply
    3,217.49x = 4,826.81 × 1,138.70
  4. Step 4: Simplify right side
    3,217.49x = 5,496,288.55
  5. Step 5: Solve for x
    x = 5,496,288.55/3,217.49
  6. Step 6: Final answer
    x = 1,708.25

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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.