Home / 5,161.30-7,741.98-1,265.71

Finding the Fourth Proportional to 5,161.30, 7,741.98 and 1,265.71

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Solution

The fourth proportional to 5,161.30, 7,741.98 and 1,265.71 is: 1,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.30 : 7,741.98 = 1,265.71 : x
  2. Step 2: Convert to fraction form
    5,161.30/7,741.98 = 1,265.71/x
  3. Step 3: Cross multiply
    5,161.30x = 7,741.98 × 1,265.71
  4. Step 4: Simplify right side
    5,161.30x = 9,799,101.51
  5. Step 5: Solve for x
    x = 9,799,101.51/5,161.30
  6. Step 6: Final answer
    x = 1,898.57

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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.