Home / 3,890.57-5,833.96-1,292.63

Finding the Fourth Proportional to 3,890.57, 5,833.96 and 1,292.63

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Solution

The fourth proportional to 3,890.57, 5,833.96 and 1,292.63 is: 1,938.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.57 : 5,833.96 = 1,292.63 : x
  2. Step 2: Convert to fraction form
    3,890.57/5,833.96 = 1,292.63/x
  3. Step 3: Cross multiply
    3,890.57x = 5,833.96 × 1,292.63
  4. Step 4: Simplify right side
    3,890.57x = 7,541,119.31
  5. Step 5: Solve for x
    x = 7,541,119.31/3,890.57
  6. Step 6: Final answer
    x = 1,938.31

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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.