Home / 2,813.88-4,209.30-2,353.08

Finding the Fourth Proportional to 2,813.88, 4,209.30 and 2,353.08

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Solution

The fourth proportional to 2,813.88, 4,209.30 and 2,353.08 is: 3,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.88 : 4,209.30 = 2,353.08 : x
  2. Step 2: Convert to fraction form
    2,813.88/4,209.30 = 2,353.08/x
  3. Step 3: Cross multiply
    2,813.88x = 4,209.30 × 2,353.08
  4. Step 4: Simplify right side
    2,813.88x = 9,904,819.64
  5. Step 5: Solve for x
    x = 9,904,819.64/2,813.88
  6. Step 6: Final answer
    x = 3,519.99

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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.