Home / 3,177.44-4,765.76-986.16

Finding the Fourth Proportional to 3,177.44, 4,765.76 and 986.16

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Solution

The fourth proportional to 3,177.44, 4,765.76 and 986.16 is: 1,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.44 : 4,765.76 = 986.16 : x
  2. Step 2: Convert to fraction form
    3,177.44/4,765.76 = 986.16/x
  3. Step 3: Cross multiply
    3,177.44x = 4,765.76 × 986.16
  4. Step 4: Simplify right side
    3,177.44x = 4,699,801.88
  5. Step 5: Solve for x
    x = 4,699,801.88/3,177.44
  6. Step 6: Final answer
    x = 1,479.12

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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.