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Finding the Fourth Proportional to 1,246.09, 1,868.26 and 894.91

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Solution

The fourth proportional to 1,246.09, 1,868.26 and 894.91 is: 1,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.09 : 1,868.26 = 894.91 : x
  2. Step 2: Convert to fraction form
    1,246.09/1,868.26 = 894.91/x
  3. Step 3: Cross multiply
    1,246.09x = 1,868.26 × 894.91
  4. Step 4: Simplify right side
    1,246.09x = 1,671,917.65
  5. Step 5: Solve for x
    x = 1,671,917.65/1,246.09
  6. Step 6: Final answer
    x = 1,341.73

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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.