Home / 2,690.85-4,038.89-2,542.94

Finding the Fourth Proportional to 2,690.85, 4,038.89 and 2,542.94

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Solution

The fourth proportional to 2,690.85, 4,038.89 and 2,542.94 is: 3,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.85 : 4,038.89 = 2,542.94 : x
  2. Step 2: Convert to fraction form
    2,690.85/4,038.89 = 2,542.94/x
  3. Step 3: Cross multiply
    2,690.85x = 4,038.89 × 2,542.94
  4. Step 4: Simplify right side
    2,690.85x = 10,270,622.03
  5. Step 5: Solve for x
    x = 10,270,622.03/2,690.85
  6. Step 6: Final answer
    x = 3,816.87

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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.