Home / 2,155.10-3,226.35-1,609.70

Finding the Fourth Proportional to 2,155.10, 3,226.35 and 1,609.70

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Solution

The fourth proportional to 2,155.10, 3,226.35 and 1,609.70 is: 2,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.10 : 3,226.35 = 1,609.70 : x
  2. Step 2: Convert to fraction form
    2,155.10/3,226.35 = 1,609.70/x
  3. Step 3: Cross multiply
    2,155.10x = 3,226.35 × 1,609.70
  4. Step 4: Simplify right side
    2,155.10x = 5,193,455.60
  5. Step 5: Solve for x
    x = 5,193,455.60/2,155.10
  6. Step 6: Final answer
    x = 2,409.84

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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.