Home / 3,311.72-4,569.80-2,648.33

Finding the Fourth Proportional to 3,311.72, 4,569.80 and 2,648.33

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Solution

The fourth proportional to 3,311.72, 4,569.80 and 2,648.33 is: 3,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.72 : 4,569.80 = 2,648.33 : x
  2. Step 2: Convert to fraction form
    3,311.72/4,569.80 = 2,648.33/x
  3. Step 3: Cross multiply
    3,311.72x = 4,569.80 × 2,648.33
  4. Step 4: Simplify right side
    3,311.72x = 12,102,315.59
  5. Step 5: Solve for x
    x = 12,102,315.59/3,311.72
  6. Step 6: Final answer
    x = 3,654.40

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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.