Home / 7,886.40-11,829.45-2,042.88

Finding the Fourth Proportional to 7,886.40, 11,829.45 and 2,042.88

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Solution

The fourth proportional to 7,886.40, 11,829.45 and 2,042.88 is: 3,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.40 : 11,829.45 = 2,042.88 : x
  2. Step 2: Convert to fraction form
    7,886.40/11,829.45 = 2,042.88/x
  3. Step 3: Cross multiply
    7,886.40x = 11,829.45 × 2,042.88
  4. Step 4: Simplify right side
    7,886.40x = 24,166,146.82
  5. Step 5: Solve for x
    x = 24,166,146.82/7,886.40
  6. Step 6: Final answer
    x = 3,064.28

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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.