Home / 2,999.64-4,140.56-1,977.67

Finding the Fourth Proportional to 2,999.64, 4,140.56 and 1,977.67

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Solution

The fourth proportional to 2,999.64, 4,140.56 and 1,977.67 is: 2,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.64 : 4,140.56 = 1,977.67 : x
  2. Step 2: Convert to fraction form
    2,999.64/4,140.56 = 1,977.67/x
  3. Step 3: Cross multiply
    2,999.64x = 4,140.56 × 1,977.67
  4. Step 4: Simplify right side
    2,999.64x = 8,188,661.30
  5. Step 5: Solve for x
    x = 8,188,661.30/2,999.64
  6. Step 6: Final answer
    x = 2,729.88

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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.