Home / 3,359.75-5,039.72-2,779.28

Finding the Fourth Proportional to 3,359.75, 5,039.72 and 2,779.28

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Solution

The fourth proportional to 3,359.75, 5,039.72 and 2,779.28 is: 4,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.75 : 5,039.72 = 2,779.28 : x
  2. Step 2: Convert to fraction form
    3,359.75/5,039.72 = 2,779.28/x
  3. Step 3: Cross multiply
    3,359.75x = 5,039.72 × 2,779.28
  4. Step 4: Simplify right side
    3,359.75x = 14,006,783.23
  5. Step 5: Solve for x
    x = 14,006,783.23/3,359.75
  6. Step 6: Final answer
    x = 4,169.00

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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.