Home / 3,573.24-4,930.38-2,157.72

Finding the Fourth Proportional to 3,573.24, 4,930.38 and 2,157.72

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Solution

The fourth proportional to 3,573.24, 4,930.38 and 2,157.72 is: 2,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.24 : 4,930.38 = 2,157.72 : x
  2. Step 2: Convert to fraction form
    3,573.24/4,930.38 = 2,157.72/x
  3. Step 3: Cross multiply
    3,573.24x = 4,930.38 × 2,157.72
  4. Step 4: Simplify right side
    3,573.24x = 10,638,379.53
  5. Step 5: Solve for x
    x = 10,638,379.53/3,573.24
  6. Step 6: Final answer
    x = 2,977.24

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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.