Home / 3,240.89-4,861.35-1,779.24

Finding the Fourth Proportional to 3,240.89, 4,861.35 and 1,779.24

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Solution

The fourth proportional to 3,240.89, 4,861.35 and 1,779.24 is: 2,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.89 : 4,861.35 = 1,779.24 : x
  2. Step 2: Convert to fraction form
    3,240.89/4,861.35 = 1,779.24/x
  3. Step 3: Cross multiply
    3,240.89x = 4,861.35 × 1,779.24
  4. Step 4: Simplify right side
    3,240.89x = 8,649,508.37
  5. Step 5: Solve for x
    x = 8,649,508.37/3,240.89
  6. Step 6: Final answer
    x = 2,668.87

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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.