Home / 4,087.92-6,131.88-1,779.42

Finding the Fourth Proportional to 4,087.92, 6,131.88 and 1,779.42

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Solution

The fourth proportional to 4,087.92, 6,131.88 and 1,779.42 is: 2,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.92 : 6,131.88 = 1,779.42 : x
  2. Step 2: Convert to fraction form
    4,087.92/6,131.88 = 1,779.42/x
  3. Step 3: Cross multiply
    4,087.92x = 6,131.88 × 1,779.42
  4. Step 4: Simplify right side
    4,087.92x = 10,911,189.91
  5. Step 5: Solve for x
    x = 10,911,189.91/4,087.92
  6. Step 6: Final answer
    x = 2,669.13

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Similar ratio
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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.