Home / 3,575.18-4,930.97-2,157.39

Finding the Fourth Proportional to 3,575.18, 4,930.97 and 2,157.39

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Solution

The fourth proportional to 3,575.18, 4,930.97 and 2,157.39 is: 2,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.18 : 4,930.97 = 2,157.39 : x
  2. Step 2: Convert to fraction form
    3,575.18/4,930.97 = 2,157.39/x
  3. Step 3: Cross multiply
    3,575.18x = 4,930.97 × 2,157.39
  4. Step 4: Simplify right side
    3,575.18x = 10,638,022.67
  5. Step 5: Solve for x
    x = 10,638,022.67/3,575.18
  6. Step 6: Final answer
    x = 2,975.52

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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.