Home / 3,811.87-5,258.68-2,485.63

Finding the Fourth Proportional to 3,811.87, 5,258.68 and 2,485.63

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Solution

The fourth proportional to 3,811.87, 5,258.68 and 2,485.63 is: 3,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.87 : 5,258.68 = 2,485.63 : x
  2. Step 2: Convert to fraction form
    3,811.87/5,258.68 = 2,485.63/x
  3. Step 3: Cross multiply
    3,811.87x = 5,258.68 × 2,485.63
  4. Step 4: Simplify right side
    3,811.87x = 13,071,132.77
  5. Step 5: Solve for x
    x = 13,071,132.77/3,811.87
  6. Step 6: Final answer
    x = 3,429.06

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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.