Home / 1,676.35-2,312.19-1,171.36

Finding the Fourth Proportional to 1,676.35, 2,312.19 and 1,171.36

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Solution

The fourth proportional to 1,676.35, 2,312.19 and 1,171.36 is: 1,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.35 : 2,312.19 = 1,171.36 : x
  2. Step 2: Convert to fraction form
    1,676.35/2,312.19 = 1,171.36/x
  3. Step 3: Cross multiply
    1,676.35x = 2,312.19 × 1,171.36
  4. Step 4: Simplify right side
    1,676.35x = 2,708,406.88
  5. Step 5: Solve for x
    x = 2,708,406.88/1,676.35
  6. Step 6: Final answer
    x = 1,615.66

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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.