Home / 3,609.36-4,983.60-2,489.76

Finding the Fourth Proportional to 3,609.36, 4,983.60 and 2,489.76

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Solution

The fourth proportional to 3,609.36, 4,983.60 and 2,489.76 is: 3,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.36 : 4,983.60 = 2,489.76 : x
  2. Step 2: Convert to fraction form
    3,609.36/4,983.60 = 2,489.76/x
  3. Step 3: Cross multiply
    3,609.36x = 4,983.60 × 2,489.76
  4. Step 4: Simplify right side
    3,609.36x = 12,407,967.94
  5. Step 5: Solve for x
    x = 12,407,967.94/3,609.36
  6. Step 6: Final answer
    x = 3,437.72

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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.