Home / 3,438.85-4,745.72-1,946.74

Finding the Fourth Proportional to 3,438.85, 4,745.72 and 1,946.74

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Solution

The fourth proportional to 3,438.85, 4,745.72 and 1,946.74 is: 2,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.85 : 4,745.72 = 1,946.74 : x
  2. Step 2: Convert to fraction form
    3,438.85/4,745.72 = 1,946.74/x
  3. Step 3: Cross multiply
    3,438.85x = 4,745.72 × 1,946.74
  4. Step 4: Simplify right side
    3,438.85x = 9,238,649.49
  5. Step 5: Solve for x
    x = 9,238,649.49/3,438.85
  6. Step 6: Final answer
    x = 2,686.56

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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.