Home / 7,718.29-11,577.33-1,874.88

Finding the Fourth Proportional to 7,718.29, 11,577.33 and 1,874.88

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Solution

The fourth proportional to 7,718.29, 11,577.33 and 1,874.88 is: 2,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.29 : 11,577.33 = 1,874.88 : x
  2. Step 2: Convert to fraction form
    7,718.29/11,577.33 = 1,874.88/x
  3. Step 3: Cross multiply
    7,718.29x = 11,577.33 × 1,874.88
  4. Step 4: Simplify right side
    7,718.29x = 21,706,104.47
  5. Step 5: Solve for x
    x = 21,706,104.47/7,718.29
  6. Step 6: Final answer
    x = 2,812.30

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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.