Home / 3,283.10-4,920.54-1,640.11

Finding the Fourth Proportional to 3,283.10, 4,920.54 and 1,640.11

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Solution

The fourth proportional to 3,283.10, 4,920.54 and 1,640.11 is: 2,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,283.10 : 4,920.54 = 1,640.11 : x
  2. Step 2: Convert to fraction form
    3,283.10/4,920.54 = 1,640.11/x
  3. Step 3: Cross multiply
    3,283.10x = 4,920.54 × 1,640.11
  4. Step 4: Simplify right side
    3,283.10x = 8,070,208.41
  5. Step 5: Solve for x
    x = 8,070,208.41/3,283.10
  6. Step 6: Final answer
    x = 2,458.11

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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.