Home / 3,215.48-4,434.50-2,020.60

Finding the Fourth Proportional to 3,215.48, 4,434.50 and 2,020.60

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Solution

The fourth proportional to 3,215.48, 4,434.50 and 2,020.60 is: 2,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.48 : 4,434.50 = 2,020.60 : x
  2. Step 2: Convert to fraction form
    3,215.48/4,434.50 = 2,020.60/x
  3. Step 3: Cross multiply
    3,215.48x = 4,434.50 × 2,020.60
  4. Step 4: Simplify right side
    3,215.48x = 8,960,318.42
  5. Step 5: Solve for x
    x = 8,960,318.42/3,215.48
  6. Step 6: Final answer
    x = 2,786.62

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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.