Home / 2,411.40-3,609.90-2,152.20

Finding the Fourth Proportional to 2,411.40, 3,609.90 and 2,152.20

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Solution

The fourth proportional to 2,411.40, 3,609.90 and 2,152.20 is: 3,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.40 : 3,609.90 = 2,152.20 : x
  2. Step 2: Convert to fraction form
    2,411.40/3,609.90 = 2,152.20/x
  3. Step 3: Cross multiply
    2,411.40x = 3,609.90 × 2,152.20
  4. Step 4: Simplify right side
    2,411.40x = 7,769,226.78
  5. Step 5: Solve for x
    x = 7,769,226.78/2,411.40
  6. Step 6: Final answer
    x = 3,221.87

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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.