Home / 3,438.38-4,745.27-1,946.57

Finding the Fourth Proportional to 3,438.38, 4,745.27 and 1,946.57

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Solution

The fourth proportional to 3,438.38, 4,745.27 and 1,946.57 is: 2,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.38 : 4,745.27 = 1,946.57 : x
  2. Step 2: Convert to fraction form
    3,438.38/4,745.27 = 1,946.57/x
  3. Step 3: Cross multiply
    3,438.38x = 4,745.27 × 1,946.57
  4. Step 4: Simplify right side
    3,438.38x = 9,236,966.76
  5. Step 5: Solve for x
    x = 9,236,966.76/3,438.38
  6. Step 6: Final answer
    x = 2,686.43

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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.