Home / 3,220.34-4,829.62-1,140.07

Finding the Fourth Proportional to 3,220.34, 4,829.62 and 1,140.07

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Solution

The fourth proportional to 3,220.34, 4,829.62 and 1,140.07 is: 1,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.34 : 4,829.62 = 1,140.07 : x
  2. Step 2: Convert to fraction form
    3,220.34/4,829.62 = 1,140.07/x
  3. Step 3: Cross multiply
    3,220.34x = 4,829.62 × 1,140.07
  4. Step 4: Simplify right side
    3,220.34x = 5,506,104.87
  5. Step 5: Solve for x
    x = 5,506,104.87/3,220.34
  6. Step 6: Final answer
    x = 1,709.79

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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.