Home / 2,310.85-3,461.36-2,145.61

Finding the Fourth Proportional to 2,310.85, 3,461.36 and 2,145.61

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Solution

The fourth proportional to 2,310.85, 3,461.36 and 2,145.61 is: 3,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.85 : 3,461.36 = 2,145.61 : x
  2. Step 2: Convert to fraction form
    2,310.85/3,461.36 = 2,145.61/x
  3. Step 3: Cross multiply
    2,310.85x = 3,461.36 × 2,145.61
  4. Step 4: Simplify right side
    2,310.85x = 7,426,716.69
  5. Step 5: Solve for x
    x = 7,426,716.69/2,310.85
  6. Step 6: Final answer
    x = 3,213.85

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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.