Home / 3,856.03-5,784.63-1,258.75

Finding the Fourth Proportional to 3,856.03, 5,784.63 and 1,258.75

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Solution

The fourth proportional to 3,856.03, 5,784.63 and 1,258.75 is: 1,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.03 : 5,784.63 = 1,258.75 : x
  2. Step 2: Convert to fraction form
    3,856.03/5,784.63 = 1,258.75/x
  3. Step 3: Cross multiply
    3,856.03x = 5,784.63 × 1,258.75
  4. Step 4: Simplify right side
    3,856.03x = 7,281,403.01
  5. Step 5: Solve for x
    x = 7,281,403.01/3,856.03
  6. Step 6: Final answer
    x = 1,888.32

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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.