Home / 7,885.34-11,825.58-2,690

Finding the Fourth Proportional to 7,885.34, 11,825.58 and 2,690

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Solution

The fourth proportional to 7,885.34, 11,825.58 and 2,690 is: 4,034.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.34 : 11,825.58 = 2,690 : x
  2. Step 2: Convert to fraction form
    7,885.34/11,825.58 = 2,690/x
  3. Step 3: Cross multiply
    7,885.34x = 11,825.58 × 2,690
  4. Step 4: Simplify right side
    7,885.34x = 31,810,810.20
  5. Step 5: Solve for x
    x = 31,810,810.20/7,885.34
  6. Step 6: Final answer
    x = 4,034.17

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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.