Home / 2,519.51-3,779.27-1,423.80

Finding the Fourth Proportional to 2,519.51, 3,779.27 and 1,423.80

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Solution

The fourth proportional to 2,519.51, 3,779.27 and 1,423.80 is: 2,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.51 : 3,779.27 = 1,423.80 : x
  2. Step 2: Convert to fraction form
    2,519.51/3,779.27 = 1,423.80/x
  3. Step 3: Cross multiply
    2,519.51x = 3,779.27 × 1,423.80
  4. Step 4: Simplify right side
    2,519.51x = 5,380,917.51
  5. Step 5: Solve for x
    x = 5,380,917.51/2,519.51
  6. Step 6: Final answer
    x = 2,135.70

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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.