Home / 3,290.55-4,540.51-2,113.21

Finding the Fourth Proportional to 3,290.55, 4,540.51 and 2,113.21

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Solution

The fourth proportional to 3,290.55, 4,540.51 and 2,113.21 is: 2,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.55 : 4,540.51 = 2,113.21 : x
  2. Step 2: Convert to fraction form
    3,290.55/4,540.51 = 2,113.21/x
  3. Step 3: Cross multiply
    3,290.55x = 4,540.51 × 2,113.21
  4. Step 4: Simplify right side
    3,290.55x = 9,595,051.14
  5. Step 5: Solve for x
    x = 9,595,051.14/3,290.55
  6. Step 6: Final answer
    x = 2,915.95

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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.