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Finding the Fourth Proportional to 3,383.55, 4,669.11 and 2,124.81

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Solution

The fourth proportional to 3,383.55, 4,669.11 and 2,124.81 is: 2,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.55 : 4,669.11 = 2,124.81 : x
  2. Step 2: Convert to fraction form
    3,383.55/4,669.11 = 2,124.81/x
  3. Step 3: Cross multiply
    3,383.55x = 4,669.11 × 2,124.81
  4. Step 4: Simplify right side
    3,383.55x = 9,920,971.62
  5. Step 5: Solve for x
    x = 9,920,971.62/3,383.55
  6. Step 6: Final answer
    x = 2,932.12

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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.