Home / 3,950.22-5,447.79-2,551.50

Finding the Fourth Proportional to 3,950.22, 5,447.79 and 2,551.50

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Solution

The fourth proportional to 3,950.22, 5,447.79 and 2,551.50 is: 3,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.22 : 5,447.79 = 2,551.50 : x
  2. Step 2: Convert to fraction form
    3,950.22/5,447.79 = 2,551.50/x
  3. Step 3: Cross multiply
    3,950.22x = 5,447.79 × 2,551.50
  4. Step 4: Simplify right side
    3,950.22x = 13,900,036.19
  5. Step 5: Solve for x
    x = 13,900,036.19/3,950.22
  6. Step 6: Final answer
    x = 3,518.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.