Home / 3,618.12-4,993.20-2,291.34

Finding the Fourth Proportional to 3,618.12, 4,993.20 and 2,291.34

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Solution

The fourth proportional to 3,618.12, 4,993.20 and 2,291.34 is: 3,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.12 : 4,993.20 = 2,291.34 : x
  2. Step 2: Convert to fraction form
    3,618.12/4,993.20 = 2,291.34/x
  3. Step 3: Cross multiply
    3,618.12x = 4,993.20 × 2,291.34
  4. Step 4: Simplify right side
    3,618.12x = 11,441,118.89
  5. Step 5: Solve for x
    x = 11,441,118.89/3,618.12
  6. Step 6: Final answer
    x = 3,162.17

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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.