Home / 3,811.64-5,258.61-2,318.99

Finding the Fourth Proportional to 3,811.64, 5,258.61 and 2,318.99

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Solution

The fourth proportional to 3,811.64, 5,258.61 and 2,318.99 is: 3,199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.64 : 5,258.61 = 2,318.99 : x
  2. Step 2: Convert to fraction form
    3,811.64/5,258.61 = 2,318.99/x
  3. Step 3: Cross multiply
    3,811.64x = 5,258.61 × 2,318.99
  4. Step 4: Simplify right side
    3,811.64x = 12,194,664.00
  5. Step 5: Solve for x
    x = 12,194,664.00/3,811.64
  6. Step 6: Final answer
    x = 3,199.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.