Home / 3,390.89-5,085.41-1,541.05

Finding the Fourth Proportional to 3,390.89, 5,085.41 and 1,541.05

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Solution

The fourth proportional to 3,390.89, 5,085.41 and 1,541.05 is: 2,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.89 : 5,085.41 = 1,541.05 : x
  2. Step 2: Convert to fraction form
    3,390.89/5,085.41 = 1,541.05/x
  3. Step 3: Cross multiply
    3,390.89x = 5,085.41 × 1,541.05
  4. Step 4: Simplify right side
    3,390.89x = 7,836,850.66
  5. Step 5: Solve for x
    x = 7,836,850.66/3,390.89
  6. Step 6: Final answer
    x = 2,311.15

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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.