Home / 7,276.20-10,899.90-3,983.40

Finding the Fourth Proportional to 7,276.20, 10,899.90 and 3,983.40

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Solution

The fourth proportional to 7,276.20, 10,899.90 and 3,983.40 is: 5,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.20 : 10,899.90 = 3,983.40 : x
  2. Step 2: Convert to fraction form
    7,276.20/10,899.90 = 3,983.40/x
  3. Step 3: Cross multiply
    7,276.20x = 10,899.90 × 3,983.40
  4. Step 4: Simplify right side
    7,276.20x = 43,418,661.66
  5. Step 5: Solve for x
    x = 43,418,661.66/7,276.20
  6. Step 6: Final answer
    x = 5,967.22

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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.