Home / 3,540.75-4,880.96-2,281.55

Finding the Fourth Proportional to 3,540.75, 4,880.96 and 2,281.55

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Solution

The fourth proportional to 3,540.75, 4,880.96 and 2,281.55 is: 3,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.75 : 4,880.96 = 2,281.55 : x
  2. Step 2: Convert to fraction form
    3,540.75/4,880.96 = 2,281.55/x
  3. Step 3: Cross multiply
    3,540.75x = 4,880.96 × 2,281.55
  4. Step 4: Simplify right side
    3,540.75x = 11,136,154.29
  5. Step 5: Solve for x
    x = 11,136,154.29/3,540.75
  6. Step 6: Final answer
    x = 3,145.14

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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.