Home / 3,609.02-5,388.18-2,912.96

Finding the Fourth Proportional to 3,609.02, 5,388.18 and 2,912.96

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Solution

The fourth proportional to 3,609.02, 5,388.18 and 2,912.96 is: 4,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.02 : 5,388.18 = 2,912.96 : x
  2. Step 2: Convert to fraction form
    3,609.02/5,388.18 = 2,912.96/x
  3. Step 3: Cross multiply
    3,609.02x = 5,388.18 × 2,912.96
  4. Step 4: Simplify right side
    3,609.02x = 15,695,552.81
  5. Step 5: Solve for x
    x = 15,695,552.81/3,609.02
  6. Step 6: Final answer
    x = 4,348.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.