Home / 2,635.58-3,950.33-991.08

Finding the Fourth Proportional to 2,635.58, 3,950.33 and 991.08

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Solution

The fourth proportional to 2,635.58, 3,950.33 and 991.08 is: 1,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.58 : 3,950.33 = 991.08 : x
  2. Step 2: Convert to fraction form
    2,635.58/3,950.33 = 991.08/x
  3. Step 3: Cross multiply
    2,635.58x = 3,950.33 × 991.08
  4. Step 4: Simplify right side
    2,635.58x = 3,915,090.58
  5. Step 5: Solve for x
    x = 3,915,090.58/2,635.58
  6. Step 6: Final answer
    x = 1,485.47

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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.