Home / 3,619.92-5,430.56-1,155.36

Finding the Fourth Proportional to 3,619.92, 5,430.56 and 1,155.36

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Solution

The fourth proportional to 3,619.92, 5,430.56 and 1,155.36 is: 1,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.92 : 5,430.56 = 1,155.36 : x
  2. Step 2: Convert to fraction form
    3,619.92/5,430.56 = 1,155.36/x
  3. Step 3: Cross multiply
    3,619.92x = 5,430.56 × 1,155.36
  4. Step 4: Simplify right side
    3,619.92x = 6,274,246.02
  5. Step 5: Solve for x
    x = 6,274,246.02/3,619.92
  6. Step 6: Final answer
    x = 1,733.26

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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.