Home / 3,087.72-4,266.90-2,698.92

Finding the Fourth Proportional to 3,087.72, 4,266.90 and 2,698.92

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Solution

The fourth proportional to 3,087.72, 4,266.90 and 2,698.92 is: 3,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.72 : 4,266.90 = 2,698.92 : x
  2. Step 2: Convert to fraction form
    3,087.72/4,266.90 = 2,698.92/x
  3. Step 3: Cross multiply
    3,087.72x = 4,266.90 × 2,698.92
  4. Step 4: Simplify right side
    3,087.72x = 11,516,021.75
  5. Step 5: Solve for x
    x = 11,516,021.75/3,087.72
  6. Step 6: Final answer
    x = 3,729.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.