Home / 2,800.21-4,199.10-1,631.38

Finding the Fourth Proportional to 2,800.21, 4,199.10 and 1,631.38

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Solution

The fourth proportional to 2,800.21, 4,199.10 and 1,631.38 is: 2,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.21 : 4,199.10 = 1,631.38 : x
  2. Step 2: Convert to fraction form
    2,800.21/4,199.10 = 1,631.38/x
  3. Step 3: Cross multiply
    2,800.21x = 4,199.10 × 1,631.38
  4. Step 4: Simplify right side
    2,800.21x = 6,850,327.76
  5. Step 5: Solve for x
    x = 6,850,327.76/2,800.21
  6. Step 6: Final answer
    x = 2,446.36

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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.