Home / 3,572.75-4,930.35-2,081.54

Finding the Fourth Proportional to 3,572.75, 4,930.35 and 2,081.54

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Solution

The fourth proportional to 3,572.75, 4,930.35 and 2,081.54 is: 2,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.75 : 4,930.35 = 2,081.54 : x
  2. Step 2: Convert to fraction form
    3,572.75/4,930.35 = 2,081.54/x
  3. Step 3: Cross multiply
    3,572.75x = 4,930.35 × 2,081.54
  4. Step 4: Simplify right side
    3,572.75x = 10,262,720.74
  5. Step 5: Solve for x
    x = 10,262,720.74/3,572.75
  6. Step 6: Final answer
    x = 2,872.50

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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.