Home / 3,176.89-4,765.37-985.77

Finding the Fourth Proportional to 3,176.89, 4,765.37 and 985.77

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Solution

The fourth proportional to 3,176.89, 4,765.37 and 985.77 is: 1,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.89 : 4,765.37 = 985.77 : x
  2. Step 2: Convert to fraction form
    3,176.89/4,765.37 = 985.77/x
  3. Step 3: Cross multiply
    3,176.89x = 4,765.37 × 985.77
  4. Step 4: Simplify right side
    3,176.89x = 4,697,553.86
  5. Step 5: Solve for x
    x = 4,697,553.86/3,176.89
  6. Step 6: Final answer
    x = 1,478.67

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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.