Home / 2,763.80-4,145.70-2,472.20

Finding the Fourth Proportional to 2,763.80, 4,145.70 and 2,472.20

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Solution

The fourth proportional to 2,763.80, 4,145.70 and 2,472.20 is: 3,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.80 : 4,145.70 = 2,472.20 : x
  2. Step 2: Convert to fraction form
    2,763.80/4,145.70 = 2,472.20/x
  3. Step 3: Cross multiply
    2,763.80x = 4,145.70 × 2,472.20
  4. Step 4: Simplify right side
    2,763.80x = 10,248,999.54
  5. Step 5: Solve for x
    x = 10,248,999.54/2,763.80
  6. Step 6: Final answer
    x = 3,708.30

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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.