Home / 3,581.36-5,370.13-1,240.77

Finding the Fourth Proportional to 3,581.36, 5,370.13 and 1,240.77

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Solution

The fourth proportional to 3,581.36, 5,370.13 and 1,240.77 is: 1,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.36 : 5,370.13 = 1,240.77 : x
  2. Step 2: Convert to fraction form
    3,581.36/5,370.13 = 1,240.77/x
  3. Step 3: Cross multiply
    3,581.36x = 5,370.13 × 1,240.77
  4. Step 4: Simplify right side
    3,581.36x = 6,663,077.61
  5. Step 5: Solve for x
    x = 6,663,077.61/3,581.36
  6. Step 6: Final answer
    x = 1,860.49

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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.