Home / 5,326.92-7,991.25-1,628.28

Finding the Fourth Proportional to 5,326.92, 7,991.25 and 1,628.28

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Solution

The fourth proportional to 5,326.92, 7,991.25 and 1,628.28 is: 2,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.92 : 7,991.25 = 1,628.28 : x
  2. Step 2: Convert to fraction form
    5,326.92/7,991.25 = 1,628.28/x
  3. Step 3: Cross multiply
    5,326.92x = 7,991.25 × 1,628.28
  4. Step 4: Simplify right side
    5,326.92x = 13,011,992.55
  5. Step 5: Solve for x
    x = 13,011,992.55/5,326.92
  6. Step 6: Final answer
    x = 2,442.69

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1.5x scale

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.