Home / 5,326.99-7,991.39-1,628.36

Finding the Fourth Proportional to 5,326.99, 7,991.39 and 1,628.36

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Solution

The fourth proportional to 5,326.99, 7,991.39 and 1,628.36 is: 2,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.99 : 7,991.39 = 1,628.36 : x
  2. Step 2: Convert to fraction form
    5,326.99/7,991.39 = 1,628.36/x
  3. Step 3: Cross multiply
    5,326.99x = 7,991.39 × 1,628.36
  4. Step 4: Simplify right side
    5,326.99x = 13,012,852.65
  5. Step 5: Solve for x
    x = 13,012,852.65/5,326.99
  6. Step 6: Final answer
    x = 2,442.81

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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.