Home / 5,326.28-7,990.77-1,628.36

Finding the Fourth Proportional to 5,326.28, 7,990.77 and 1,628.36

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Solution

The fourth proportional to 5,326.28, 7,990.77 and 1,628.36 is: 2,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.28 : 7,990.77 = 1,628.36 : x
  2. Step 2: Convert to fraction form
    5,326.28/7,990.77 = 1,628.36/x
  3. Step 3: Cross multiply
    5,326.28x = 7,990.77 × 1,628.36
  4. Step 4: Simplify right side
    5,326.28x = 13,011,850.24
  5. Step 5: Solve for x
    x = 13,011,850.24/5,326.28
  6. Step 6: Final answer
    x = 2,442.95

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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.