Home / 2,486.37-3,730.38-1,187.67

Finding the Fourth Proportional to 2,486.37, 3,730.38 and 1,187.67

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Solution

The fourth proportional to 2,486.37, 3,730.38 and 1,187.67 is: 1,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.37 : 3,730.38 = 1,187.67 : x
  2. Step 2: Convert to fraction form
    2,486.37/3,730.38 = 1,187.67/x
  3. Step 3: Cross multiply
    2,486.37x = 3,730.38 × 1,187.67
  4. Step 4: Simplify right side
    2,486.37x = 4,430,460.41
  5. Step 5: Solve for x
    x = 4,430,460.41/2,486.37
  6. Step 6: Final answer
    x = 1,781.90

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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.