Home / 9,131.82-13,699.95-2,557.90

Finding the Fourth Proportional to 9,131.82, 13,699.95 and 2,557.90

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Solution

The fourth proportional to 9,131.82, 13,699.95 and 2,557.90 is: 3,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.82 : 13,699.95 = 2,557.90 : x
  2. Step 2: Convert to fraction form
    9,131.82/13,699.95 = 2,557.90/x
  3. Step 3: Cross multiply
    9,131.82x = 13,699.95 × 2,557.90
  4. Step 4: Simplify right side
    9,131.82x = 35,043,102.11
  5. Step 5: Solve for x
    x = 35,043,102.11/9,131.82
  6. Step 6: Final answer
    x = 3,837.47

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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.