Home / 2,830.28-3,907.50-2,199.62

Finding the Fourth Proportional to 2,830.28, 3,907.50 and 2,199.62

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Solution

The fourth proportional to 2,830.28, 3,907.50 and 2,199.62 is: 3,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.28 : 3,907.50 = 2,199.62 : x
  2. Step 2: Convert to fraction form
    2,830.28/3,907.50 = 2,199.62/x
  3. Step 3: Cross multiply
    2,830.28x = 3,907.50 × 2,199.62
  4. Step 4: Simplify right side
    2,830.28x = 8,595,011.87
  5. Step 5: Solve for x
    x = 8,595,011.87/2,830.28
  6. Step 6: Final answer
    x = 3,036.81

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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.