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Finding the Fourth Proportional to 3,086.93, 4,631.11 and 895.70

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Solution

The fourth proportional to 3,086.93, 4,631.11 and 895.70 is: 1,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.93 : 4,631.11 = 895.70 : x
  2. Step 2: Convert to fraction form
    3,086.93/4,631.11 = 895.70/x
  3. Step 3: Cross multiply
    3,086.93x = 4,631.11 × 895.70
  4. Step 4: Simplify right side
    3,086.93x = 4,148,059.83
  5. Step 5: Solve for x
    x = 4,148,059.83/3,086.93
  6. Step 6: Final answer
    x = 1,343.75

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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.