Home / 3,609.20-4,983-2,212.40

Finding the Fourth Proportional to 3,609.20, 4,983 and 2,212.40

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Solution

The fourth proportional to 3,609.20, 4,983 and 2,212.40 is: 3,054.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.20 : 4,983 = 2,212.40 : x
  2. Step 2: Convert to fraction form
    3,609.20/4,983 = 2,212.40/x
  3. Step 3: Cross multiply
    3,609.20x = 4,983 × 2,212.40
  4. Step 4: Simplify right side
    3,609.20x = 11,024,389.20
  5. Step 5: Solve for x
    x = 11,024,389.20/3,609.20
  6. Step 6: Final answer
    x = 3,054.52

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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.