Home / 2,779.68-4,171.44-2,514.98

Finding the Fourth Proportional to 2,779.68, 4,171.44 and 2,514.98

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Solution

The fourth proportional to 2,779.68, 4,171.44 and 2,514.98 is: 3,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.68 : 4,171.44 = 2,514.98 : x
  2. Step 2: Convert to fraction form
    2,779.68/4,171.44 = 2,514.98/x
  3. Step 3: Cross multiply
    2,779.68x = 4,171.44 × 2,514.98
  4. Step 4: Simplify right side
    2,779.68x = 10,491,088.17
  5. Step 5: Solve for x
    x = 10,491,088.17/2,779.68
  6. Step 6: Final answer
    x = 3,774.21

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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.