Home / 3,143.82-4,347.90-2,750.16

Finding the Fourth Proportional to 3,143.82, 4,347.90 and 2,750.16

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Solution

The fourth proportional to 3,143.82, 4,347.90 and 2,750.16 is: 3,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.82 : 4,347.90 = 2,750.16 : x
  2. Step 2: Convert to fraction form
    3,143.82/4,347.90 = 2,750.16/x
  3. Step 3: Cross multiply
    3,143.82x = 4,347.90 × 2,750.16
  4. Step 4: Simplify right side
    3,143.82x = 11,957,420.66
  5. Step 5: Solve for x
    x = 11,957,420.66/3,143.82
  6. Step 6: Final answer
    x = 3,803.47

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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.