Home / 3,856.04-5,783.46-1,258.40

Finding the Fourth Proportional to 3,856.04, 5,783.46 and 1,258.40

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Solution

The fourth proportional to 3,856.04, 5,783.46 and 1,258.40 is: 1,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.04 : 5,783.46 = 1,258.40 : x
  2. Step 2: Convert to fraction form
    3,856.04/5,783.46 = 1,258.40/x
  3. Step 3: Cross multiply
    3,856.04x = 5,783.46 × 1,258.40
  4. Step 4: Simplify right side
    3,856.04x = 7,277,906.06
  5. Step 5: Solve for x
    x = 7,277,906.06/3,856.04
  6. Step 6: Final answer
    x = 1,887.40

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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.