Home / 5,326.26-7,989.66-1,628.61

Finding the Fourth Proportional to 5,326.26, 7,989.66 and 1,628.61

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Solution

The fourth proportional to 5,326.26, 7,989.66 and 1,628.61 is: 2,443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.26 : 7,989.66 = 1,628.61 : x
  2. Step 2: Convert to fraction form
    5,326.26/7,989.66 = 1,628.61/x
  3. Step 3: Cross multiply
    5,326.26x = 7,989.66 × 1,628.61
  4. Step 4: Simplify right side
    5,326.26x = 13,012,040.17
  5. Step 5: Solve for x
    x = 13,012,040.17/5,326.26
  6. Step 6: Final answer
    x = 2,443.00

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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.