Home / 3,855.30-5,783.85-1,258.26

Finding the Fourth Proportional to 3,855.30, 5,783.85 and 1,258.26

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Solution

The fourth proportional to 3,855.30, 5,783.85 and 1,258.26 is: 1,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.30 : 5,783.85 = 1,258.26 : x
  2. Step 2: Convert to fraction form
    3,855.30/5,783.85 = 1,258.26/x
  3. Step 3: Cross multiply
    3,855.30x = 5,783.85 × 1,258.26
  4. Step 4: Simplify right side
    3,855.30x = 7,277,587.10
  5. Step 5: Solve for x
    x = 7,277,587.10/3,855.30
  6. Step 6: Final answer
    x = 1,887.68

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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.