Home / 3,856.09-5,778.60-2,394.40

Finding the Fourth Proportional to 3,856.09, 5,778.60 and 2,394.40

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Solution

The fourth proportional to 3,856.09, 5,778.60 and 2,394.40 is: 3,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.09 : 5,778.60 = 2,394.40 : x
  2. Step 2: Convert to fraction form
    3,856.09/5,778.60 = 2,394.40/x
  3. Step 3: Cross multiply
    3,856.09x = 5,778.60 × 2,394.40
  4. Step 4: Simplify right side
    3,856.09x = 13,836,279.84
  5. Step 5: Solve for x
    x = 13,836,279.84/3,856.09
  6. Step 6: Final answer
    x = 3,588.16

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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.