Home / 3,572.49-4,930.05-2,081.28

Finding the Fourth Proportional to 3,572.49, 4,930.05 and 2,081.28

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Solution

The fourth proportional to 3,572.49, 4,930.05 and 2,081.28 is: 2,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.49 : 4,930.05 = 2,081.28 : x
  2. Step 2: Convert to fraction form
    3,572.49/4,930.05 = 2,081.28/x
  3. Step 3: Cross multiply
    3,572.49x = 4,930.05 × 2,081.28
  4. Step 4: Simplify right side
    3,572.49x = 10,260,814.46
  5. Step 5: Solve for x
    x = 10,260,814.46/3,572.49
  6. Step 6: Final answer
    x = 2,872.17

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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.