Home / 3,606.40-5,407.60-1,629.70

Finding the Fourth Proportional to 3,606.40, 5,407.60 and 1,629.70

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Solution

The fourth proportional to 3,606.40, 5,407.60 and 1,629.70 is: 2,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.40 : 5,407.60 = 1,629.70 : x
  2. Step 2: Convert to fraction form
    3,606.40/5,407.60 = 1,629.70/x
  3. Step 3: Cross multiply
    3,606.40x = 5,407.60 × 1,629.70
  4. Step 4: Simplify right side
    3,606.40x = 8,812,765.72
  5. Step 5: Solve for x
    x = 8,812,765.72/3,606.40
  6. Step 6: Final answer
    x = 2,443.65

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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.