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Finding the Fourth Proportional to 3,087.32, 4,629.88 and 895.48

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Solution

The fourth proportional to 3,087.32, 4,629.88 and 895.48 is: 1,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.32 : 4,629.88 = 895.48 : x
  2. Step 2: Convert to fraction form
    3,087.32/4,629.88 = 895.48/x
  3. Step 3: Cross multiply
    3,087.32x = 4,629.88 × 895.48
  4. Step 4: Simplify right side
    3,087.32x = 4,145,964.94
  5. Step 5: Solve for x
    x = 4,145,964.94/3,087.32
  6. Step 6: Final answer
    x = 1,342.90

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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.