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Finding the Fourth Proportional to 3,155.53, 4,735.74 and 2,540.74

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Solution

The fourth proportional to 3,155.53, 4,735.74 and 2,540.74 is: 3,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.53 : 4,735.74 = 2,540.74 : x
  2. Step 2: Convert to fraction form
    3,155.53/4,735.74 = 2,540.74/x
  3. Step 3: Cross multiply
    3,155.53x = 4,735.74 × 2,540.74
  4. Step 4: Simplify right side
    3,155.53x = 12,032,284.05
  5. Step 5: Solve for x
    x = 12,032,284.05/3,155.53
  6. Step 6: Final answer
    x = 3,813.08

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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.