Home / 2,600.43-3,899.22-1,779.63

Finding the Fourth Proportional to 2,600.43, 3,899.22 and 1,779.63

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Solution

The fourth proportional to 2,600.43, 3,899.22 and 1,779.63 is: 2,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.43 : 3,899.22 = 1,779.63 : x
  2. Step 2: Convert to fraction form
    2,600.43/3,899.22 = 1,779.63/x
  3. Step 3: Cross multiply
    2,600.43x = 3,899.22 × 1,779.63
  4. Step 4: Simplify right side
    2,600.43x = 6,939,168.89
  5. Step 5: Solve for x
    x = 6,939,168.89/2,600.43
  6. Step 6: Final answer
    x = 2,668.47

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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.