Home / 1,301.21-1,795.10-776.94

Finding the Fourth Proportional to 1,301.21, 1,795.10 and 776.94

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Solution

The fourth proportional to 1,301.21, 1,795.10 and 776.94 is: 1,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.21 : 1,795.10 = 776.94 : x
  2. Step 2: Convert to fraction form
    1,301.21/1,795.10 = 776.94/x
  3. Step 3: Cross multiply
    1,301.21x = 1,795.10 × 776.94
  4. Step 4: Simplify right side
    1,301.21x = 1,394,684.99
  5. Step 5: Solve for x
    x = 1,394,684.99/1,301.21
  6. Step 6: Final answer
    x = 1,071.84

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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.