Home / 2,763.40-4,145.10-2,513.80

Finding the Fourth Proportional to 2,763.40, 4,145.10 and 2,513.80

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Solution

The fourth proportional to 2,763.40, 4,145.10 and 2,513.80 is: 3,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.40 : 4,145.10 = 2,513.80 : x
  2. Step 2: Convert to fraction form
    2,763.40/4,145.10 = 2,513.80/x
  3. Step 3: Cross multiply
    2,763.40x = 4,145.10 × 2,513.80
  4. Step 4: Simplify right side
    2,763.40x = 10,419,952.38
  5. Step 5: Solve for x
    x = 10,419,952.38/2,763.40
  6. Step 6: Final answer
    x = 3,770.70

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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.