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Finding the Fourth Proportional to 3,085.92, 4,628.87 and 894.65

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Solution

The fourth proportional to 3,085.92, 4,628.87 and 894.65 is: 1,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.92 : 4,628.87 = 894.65 : x
  2. Step 2: Convert to fraction form
    3,085.92/4,628.87 = 894.65/x
  3. Step 3: Cross multiply
    3,085.92x = 4,628.87 × 894.65
  4. Step 4: Simplify right side
    3,085.92x = 4,141,218.55
  5. Step 5: Solve for x
    x = 4,141,218.55/3,085.92
  6. Step 6: Final answer
    x = 1,341.97

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Similar ratio
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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.