Home / 3,215.90-4,823.85-1,676.70

Finding the Fourth Proportional to 3,215.90, 4,823.85 and 1,676.70

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Solution

The fourth proportional to 3,215.90, 4,823.85 and 1,676.70 is: 2,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.90 : 4,823.85 = 1,676.70 : x
  2. Step 2: Convert to fraction form
    3,215.90/4,823.85 = 1,676.70/x
  3. Step 3: Cross multiply
    3,215.90x = 4,823.85 × 1,676.70
  4. Step 4: Simplify right side
    3,215.90x = 8,088,149.30
  5. Step 5: Solve for x
    x = 8,088,149.30/3,215.90
  6. Step 6: Final answer
    x = 2,515.05

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Similar ratio
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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.