Home / 5,173.29-7,761.75-1,886.72

Finding the Fourth Proportional to 5,173.29, 7,761.75 and 1,886.72

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Solution

The fourth proportional to 5,173.29, 7,761.75 and 1,886.72 is: 2,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.29 : 7,761.75 = 1,886.72 : x
  2. Step 2: Convert to fraction form
    5,173.29/7,761.75 = 1,886.72/x
  3. Step 3: Cross multiply
    5,173.29x = 7,761.75 × 1,886.72
  4. Step 4: Simplify right side
    5,173.29x = 14,644,210.15
  5. Step 5: Solve for x
    x = 14,644,210.15/5,173.29
  6. Step 6: Final answer
    x = 2,830.73

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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.