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Finding the Fourth Proportional to 3,086.68, 4,630.74 and 895.45

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Solution

The fourth proportional to 3,086.68, 4,630.74 and 895.45 is: 1,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.68 : 4,630.74 = 895.45 : x
  2. Step 2: Convert to fraction form
    3,086.68/4,630.74 = 895.45/x
  3. Step 3: Cross multiply
    3,086.68x = 4,630.74 × 895.45
  4. Step 4: Simplify right side
    3,086.68x = 4,146,568.50
  5. Step 5: Solve for x
    x = 4,146,568.50/3,086.68
  6. Step 6: Final answer
    x = 1,343.38

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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.