Home / 3,622.40-5,433.64-1,157.20

Finding the Fourth Proportional to 3,622.40, 5,433.64 and 1,157.20

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Solution

The fourth proportional to 3,622.40, 5,433.64 and 1,157.20 is: 1,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.40 : 5,433.64 = 1,157.20 : x
  2. Step 2: Convert to fraction form
    3,622.40/5,433.64 = 1,157.20/x
  3. Step 3: Cross multiply
    3,622.40x = 5,433.64 × 1,157.20
  4. Step 4: Simplify right side
    3,622.40x = 6,287,808.21
  5. Step 5: Solve for x
    x = 6,287,808.21/3,622.40
  6. Step 6: Final answer
    x = 1,735.81

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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.