Home / 3,220.84-4,830.37-1,140.57

Finding the Fourth Proportional to 3,220.84, 4,830.37 and 1,140.57

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Solution

The fourth proportional to 3,220.84, 4,830.37 and 1,140.57 is: 1,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.84 : 4,830.37 = 1,140.57 : x
  2. Step 2: Convert to fraction form
    3,220.84/4,830.37 = 1,140.57/x
  3. Step 3: Cross multiply
    3,220.84x = 4,830.37 × 1,140.57
  4. Step 4: Simplify right side
    3,220.84x = 5,509,375.11
  5. Step 5: Solve for x
    x = 5,509,375.11/3,220.84
  6. Step 6: Final answer
    x = 1,710.54

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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.