Home / 3,721.14-5,581.54-1,640.59

Finding the Fourth Proportional to 3,721.14, 5,581.54 and 1,640.59

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Solution

The fourth proportional to 3,721.14, 5,581.54 and 1,640.59 is: 2,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.14 : 5,581.54 = 1,640.59 : x
  2. Step 2: Convert to fraction form
    3,721.14/5,581.54 = 1,640.59/x
  3. Step 3: Cross multiply
    3,721.14x = 5,581.54 × 1,640.59
  4. Step 4: Simplify right side
    3,721.14x = 9,157,018.71
  5. Step 5: Solve for x
    x = 9,157,018.71/3,721.14
  6. Step 6: Final answer
    x = 2,460.81

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1.5x scale

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.