Home / 3,366.84-4,646.70-2,128.44

Finding the Fourth Proportional to 3,366.84, 4,646.70 and 2,128.44

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Solution

The fourth proportional to 3,366.84, 4,646.70 and 2,128.44 is: 2,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.84 : 4,646.70 = 2,128.44 : x
  2. Step 2: Convert to fraction form
    3,366.84/4,646.70 = 2,128.44/x
  3. Step 3: Cross multiply
    3,366.84x = 4,646.70 × 2,128.44
  4. Step 4: Simplify right side
    3,366.84x = 9,890,222.15
  5. Step 5: Solve for x
    x = 9,890,222.15/3,366.84
  6. Step 6: Final answer
    x = 2,937.54

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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.