Home / 7,384.56-11,080.14-3,921

Finding the Fourth Proportional to 7,384.56, 11,080.14 and 3,921

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Solution

The fourth proportional to 7,384.56, 11,080.14 and 3,921 is: 5,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.56 : 11,080.14 = 3,921 : x
  2. Step 2: Convert to fraction form
    7,384.56/11,080.14 = 3,921/x
  3. Step 3: Cross multiply
    7,384.56x = 11,080.14 × 3,921
  4. Step 4: Simplify right side
    7,384.56x = 43,445,228.94
  5. Step 5: Solve for x
    x = 43,445,228.94/7,384.56
  6. Step 6: Final answer
    x = 5,883.25

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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.