Home / 1,676.16-2,519.10-811.08

Finding the Fourth Proportional to 1,676.16, 2,519.10 and 811.08

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Solution

The fourth proportional to 1,676.16, 2,519.10 and 811.08 is: 1,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.16 : 2,519.10 = 811.08 : x
  2. Step 2: Convert to fraction form
    1,676.16/2,519.10 = 811.08/x
  3. Step 3: Cross multiply
    1,676.16x = 2,519.10 × 811.08
  4. Step 4: Simplify right side
    1,676.16x = 2,043,191.63
  5. Step 5: Solve for x
    x = 2,043,191.63/1,676.16
  6. Step 6: Final answer
    x = 1,218.97

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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.