Home / 3,581.49-5,373.60-1,391.76

Finding the Fourth Proportional to 3,581.49, 5,373.60 and 1,391.76

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Solution

The fourth proportional to 3,581.49, 5,373.60 and 1,391.76 is: 2,088.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.49 : 5,373.60 = 1,391.76 : x
  2. Step 2: Convert to fraction form
    3,581.49/5,373.60 = 1,391.76/x
  3. Step 3: Cross multiply
    3,581.49x = 5,373.60 × 1,391.76
  4. Step 4: Simplify right side
    3,581.49x = 7,478,761.54
  5. Step 5: Solve for x
    x = 7,478,761.54/3,581.49
  6. Step 6: Final answer
    x = 2,088.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.