Home / 3,620.24-5,430.75-1,154.49

Finding the Fourth Proportional to 3,620.24, 5,430.75 and 1,154.49

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Solution

The fourth proportional to 3,620.24, 5,430.75 and 1,154.49 is: 1,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.24 : 5,430.75 = 1,154.49 : x
  2. Step 2: Convert to fraction form
    3,620.24/5,430.75 = 1,154.49/x
  3. Step 3: Cross multiply
    3,620.24x = 5,430.75 × 1,154.49
  4. Step 4: Simplify right side
    3,620.24x = 6,269,746.57
  5. Step 5: Solve for x
    x = 6,269,746.57/3,620.24
  6. Step 6: Final answer
    x = 1,731.86

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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.