Home / 3,107.23-4,660.80-1,258.30

Finding the Fourth Proportional to 3,107.23, 4,660.80 and 1,258.30

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Solution

The fourth proportional to 3,107.23, 4,660.80 and 1,258.30 is: 1,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.23 : 4,660.80 = 1,258.30 : x
  2. Step 2: Convert to fraction form
    3,107.23/4,660.80 = 1,258.30/x
  3. Step 3: Cross multiply
    3,107.23x = 4,660.80 × 1,258.30
  4. Step 4: Simplify right side
    3,107.23x = 5,864,684.64
  5. Step 5: Solve for x
    x = 5,864,684.64/3,107.23
  6. Step 6: Final answer
    x = 1,887.43

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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.