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Finding the Fourth Proportional to 1,301.14, 1,795.53 and 776.86

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Solution

The fourth proportional to 1,301.14, 1,795.53 and 776.86 is: 1,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.14 : 1,795.53 = 776.86 : x
  2. Step 2: Convert to fraction form
    1,301.14/1,795.53 = 776.86/x
  3. Step 3: Cross multiply
    1,301.14x = 1,795.53 × 776.86
  4. Step 4: Simplify right side
    1,301.14x = 1,394,875.44
  5. Step 5: Solve for x
    x = 1,394,875.44/1,301.14
  6. Step 6: Final answer
    x = 1,072.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.