Home / 7,043.46-9,719.94-3,899.64

Finding the Fourth Proportional to 7,043.46, 9,719.94 and 3,899.64

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Solution

The fourth proportional to 7,043.46, 9,719.94 and 3,899.64 is: 5,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.46 : 9,719.94 = 3,899.64 : x
  2. Step 2: Convert to fraction form
    7,043.46/9,719.94 = 3,899.64/x
  3. Step 3: Cross multiply
    7,043.46x = 9,719.94 × 3,899.64
  4. Step 4: Simplify right side
    7,043.46x = 37,904,266.82
  5. Step 5: Solve for x
    x = 37,904,266.82/7,043.46
  6. Step 6: Final answer
    x = 5,381.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.