Home / 2,799.96-4,196.70-1,977

Finding the Fourth Proportional to 2,799.96, 4,196.70 and 1,977

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Solution

The fourth proportional to 2,799.96, 4,196.70 and 1,977 is: 2,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.96 : 4,196.70 = 1,977 : x
  2. Step 2: Convert to fraction form
    2,799.96/4,196.70 = 1,977/x
  3. Step 3: Cross multiply
    2,799.96x = 4,196.70 × 1,977
  4. Step 4: Simplify right side
    2,799.96x = 8,296,875.90
  5. Step 5: Solve for x
    x = 8,296,875.90/2,799.96
  6. Step 6: Final answer
    x = 2,963.21

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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.