Home / 3,830.60-5,289.60-2,416.81

Finding the Fourth Proportional to 3,830.60, 5,289.60 and 2,416.81

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Solution

The fourth proportional to 3,830.60, 5,289.60 and 2,416.81 is: 3,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.60 : 5,289.60 = 2,416.81 : x
  2. Step 2: Convert to fraction form
    3,830.60/5,289.60 = 2,416.81/x
  3. Step 3: Cross multiply
    3,830.60x = 5,289.60 × 2,416.81
  4. Step 4: Simplify right side
    3,830.60x = 12,783,958.18
  5. Step 5: Solve for x
    x = 12,783,958.18/3,830.60
  6. Step 6: Final answer
    x = 3,337.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.