Home / 2,885.21-3,981.83-1,674.33

Finding the Fourth Proportional to 2,885.21, 3,981.83 and 1,674.33

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Solution

The fourth proportional to 2,885.21, 3,981.83 and 1,674.33 is: 2,310.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.21 : 3,981.83 = 1,674.33 : x
  2. Step 2: Convert to fraction form
    2,885.21/3,981.83 = 1,674.33/x
  3. Step 3: Cross multiply
    2,885.21x = 3,981.83 × 1,674.33
  4. Step 4: Simplify right side
    2,885.21x = 6,666,889.05
  5. Step 5: Solve for x
    x = 6,666,889.05/2,885.21
  6. Step 6: Final answer
    x = 2,310.72

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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.