Home / 3,355.10-4,626.52-2,157.72

Finding the Fourth Proportional to 3,355.10, 4,626.52 and 2,157.72

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Solution

The fourth proportional to 3,355.10, 4,626.52 and 2,157.72 is: 2,975.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.10 : 4,626.52 = 2,157.72 : x
  2. Step 2: Convert to fraction form
    3,355.10/4,626.52 = 2,157.72/x
  3. Step 3: Cross multiply
    3,355.10x = 4,626.52 × 2,157.72
  4. Step 4: Simplify right side
    3,355.10x = 9,982,738.01
  5. Step 5: Solve for x
    x = 9,982,738.01/3,355.10
  6. Step 6: Final answer
    x = 2,975.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.