Home / 3,901.09-5,850.89-1,680.31

Finding the Fourth Proportional to 3,901.09, 5,850.89 and 1,680.31

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Solution

The fourth proportional to 3,901.09, 5,850.89 and 1,680.31 is: 2,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.09 : 5,850.89 = 1,680.31 : x
  2. Step 2: Convert to fraction form
    3,901.09/5,850.89 = 1,680.31/x
  3. Step 3: Cross multiply
    3,901.09x = 5,850.89 × 1,680.31
  4. Step 4: Simplify right side
    3,901.09x = 9,831,300.11
  5. Step 5: Solve for x
    x = 9,831,300.11/3,901.09
  6. Step 6: Final answer
    x = 2,520.14

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1.5x scale

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.