Home / 3,622.10-5,429.94-1,432.40

Finding the Fourth Proportional to 3,622.10, 5,429.94 and 1,432.40

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Solution

The fourth proportional to 3,622.10, 5,429.94 and 1,432.40 is: 2,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.10 : 5,429.94 = 1,432.40 : x
  2. Step 2: Convert to fraction form
    3,622.10/5,429.94 = 1,432.40/x
  3. Step 3: Cross multiply
    3,622.10x = 5,429.94 × 1,432.40
  4. Step 4: Simplify right side
    3,622.10x = 7,777,846.06
  5. Step 5: Solve for x
    x = 7,777,846.06/3,622.10
  6. Step 6: Final answer
    x = 2,147.33

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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.