Home / 3,110.60-4,665.90-2,405.90

Finding the Fourth Proportional to 3,110.60, 4,665.90 and 2,405.90

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Solution

The fourth proportional to 3,110.60, 4,665.90 and 2,405.90 is: 3,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.60 : 4,665.90 = 2,405.90 : x
  2. Step 2: Convert to fraction form
    3,110.60/4,665.90 = 2,405.90/x
  3. Step 3: Cross multiply
    3,110.60x = 4,665.90 × 2,405.90
  4. Step 4: Simplify right side
    3,110.60x = 11,225,688.81
  5. Step 5: Solve for x
    x = 11,225,688.81/3,110.60
  6. Step 6: Final answer
    x = 3,608.85

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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.