Home / 3,730.66-5,142.49-2,785.08

Finding the Fourth Proportional to 3,730.66, 5,142.49 and 2,785.08

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Solution

The fourth proportional to 3,730.66, 5,142.49 and 2,785.08 is: 3,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.66 : 5,142.49 = 2,785.08 : x
  2. Step 2: Convert to fraction form
    3,730.66/5,142.49 = 2,785.08/x
  3. Step 3: Cross multiply
    3,730.66x = 5,142.49 × 2,785.08
  4. Step 4: Simplify right side
    3,730.66x = 14,322,258.37
  5. Step 5: Solve for x
    x = 14,322,258.37/3,730.66
  6. Step 6: Final answer
    x = 3,839.07

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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.