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Finding the Fourth Proportional to 2,915.66, 4,374.36 and 2,741.60

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Solution

The fourth proportional to 2,915.66, 4,374.36 and 2,741.60 is: 4,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.66 : 4,374.36 = 2,741.60 : x
  2. Step 2: Convert to fraction form
    2,915.66/4,374.36 = 2,741.60/x
  3. Step 3: Cross multiply
    2,915.66x = 4,374.36 × 2,741.60
  4. Step 4: Simplify right side
    2,915.66x = 11,992,745.38
  5. Step 5: Solve for x
    x = 11,992,745.38/2,915.66
  6. Step 6: Final answer
    x = 4,113.22

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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.