Home / 3,986.31-5,497.29-3,040.42

Finding the Fourth Proportional to 3,986.31, 5,497.29 and 3,040.42

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Solution

The fourth proportional to 3,986.31, 5,497.29 and 3,040.42 is: 4,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.31 : 5,497.29 = 3,040.42 : x
  2. Step 2: Convert to fraction form
    3,986.31/5,497.29 = 3,040.42/x
  3. Step 3: Cross multiply
    3,986.31x = 5,497.29 × 3,040.42
  4. Step 4: Simplify right side
    3,986.31x = 16,714,070.46
  5. Step 5: Solve for x
    x = 16,714,070.46/3,986.31
  6. Step 6: Final answer
    x = 4,192.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.