Home / 7,835.78-11,754.48-2,642.06

Finding the Fourth Proportional to 7,835.78, 11,754.48 and 2,642.06

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Solution

The fourth proportional to 7,835.78, 11,754.48 and 2,642.06 is: 3,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.78 : 11,754.48 = 2,642.06 : x
  2. Step 2: Convert to fraction form
    7,835.78/11,754.48 = 2,642.06/x
  3. Step 3: Cross multiply
    7,835.78x = 11,754.48 × 2,642.06
  4. Step 4: Simplify right side
    7,835.78x = 31,056,041.43
  5. Step 5: Solve for x
    x = 31,056,041.43/7,835.78
  6. Step 6: Final answer
    x = 3,963.36

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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.