Home / 2,799.30-4,202.58-1,977.96

Finding the Fourth Proportional to 2,799.30, 4,202.58 and 1,977.96

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Solution

The fourth proportional to 2,799.30, 4,202.58 and 1,977.96 is: 2,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.30 : 4,202.58 = 1,977.96 : x
  2. Step 2: Convert to fraction form
    2,799.30/4,202.58 = 1,977.96/x
  3. Step 3: Cross multiply
    2,799.30x = 4,202.58 × 1,977.96
  4. Step 4: Simplify right side
    2,799.30x = 8,312,535.14
  5. Step 5: Solve for x
    x = 8,312,535.14/2,799.30
  6. Step 6: Final answer
    x = 2,969.50

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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.