Home / 3,355.40-4,630.32-1,938.86

Finding the Fourth Proportional to 3,355.40, 4,630.32 and 1,938.86

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Solution

The fourth proportional to 3,355.40, 4,630.32 and 1,938.86 is: 2,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.40 : 4,630.32 = 1,938.86 : x
  2. Step 2: Convert to fraction form
    3,355.40/4,630.32 = 1,938.86/x
  3. Step 3: Cross multiply
    3,355.40x = 4,630.32 × 1,938.86
  4. Step 4: Simplify right side
    3,355.40x = 8,977,542.24
  5. Step 5: Solve for x
    x = 8,977,542.24/3,355.40
  6. Step 6: Final answer
    x = 2,675.55

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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.