Home / 4,101.85-6,153.69-1,328.81

Finding the Fourth Proportional to 4,101.85, 6,153.69 and 1,328.81

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Solution

The fourth proportional to 4,101.85, 6,153.69 and 1,328.81 is: 1,993.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.85 : 6,153.69 = 1,328.81 : x
  2. Step 2: Convert to fraction form
    4,101.85/6,153.69 = 1,328.81/x
  3. Step 3: Cross multiply
    4,101.85x = 6,153.69 × 1,328.81
  4. Step 4: Simplify right side
    4,101.85x = 8,177,084.81
  5. Step 5: Solve for x
    x = 8,177,084.81/4,101.85
  6. Step 6: Final answer
    x = 1,993.51

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Half scale
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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.