Home / 2,207.21-3,309.21-1,036.61

Finding the Fourth Proportional to 2,207.21, 3,309.21 and 1,036.61

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Solution

The fourth proportional to 2,207.21, 3,309.21 and 1,036.61 is: 1,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.21 : 3,309.21 = 1,036.61 : x
  2. Step 2: Convert to fraction form
    2,207.21/3,309.21 = 1,036.61/x
  3. Step 3: Cross multiply
    2,207.21x = 3,309.21 × 1,036.61
  4. Step 4: Simplify right side
    2,207.21x = 3,430,338.45
  5. Step 5: Solve for x
    x = 3,430,338.45/2,207.21
  6. Step 6: Final answer
    x = 1,554.15

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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.