Home / 3,290.54-4,540.51-2,113.21

Finding the Fourth Proportional to 3,290.54, 4,540.51 and 2,113.21

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Solution

The fourth proportional to 3,290.54, 4,540.51 and 2,113.21 is: 2,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.54 : 4,540.51 = 2,113.21 : x
  2. Step 2: Convert to fraction form
    3,290.54/4,540.51 = 2,113.21/x
  3. Step 3: Cross multiply
    3,290.54x = 4,540.51 × 2,113.21
  4. Step 4: Simplify right side
    3,290.54x = 9,595,034.50
  5. Step 5: Solve for x
    x = 9,595,034.50/3,290.54
  6. Step 6: Final answer
    x = 2,915.94

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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.