Home / 2,814.80-4,222.20-2,037.20

Finding the Fourth Proportional to 2,814.80, 4,222.20 and 2,037.20

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Solution

The fourth proportional to 2,814.80, 4,222.20 and 2,037.20 is: 3,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.80 : 4,222.20 = 2,037.20 : x
  2. Step 2: Convert to fraction form
    2,814.80/4,222.20 = 2,037.20/x
  3. Step 3: Cross multiply
    2,814.80x = 4,222.20 × 2,037.20
  4. Step 4: Simplify right side
    2,814.80x = 8,601,465.84
  5. Step 5: Solve for x
    x = 8,601,465.84/2,814.80
  6. Step 6: Final answer
    x = 3,055.80

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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.