Home / 3,431.10-4,734.88-1,938.94

Finding the Fourth Proportional to 3,431.10, 4,734.88 and 1,938.94

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Solution

The fourth proportional to 3,431.10, 4,734.88 and 1,938.94 is: 2,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.10 : 4,734.88 = 1,938.94 : x
  2. Step 2: Convert to fraction form
    3,431.10/4,734.88 = 1,938.94/x
  3. Step 3: Cross multiply
    3,431.10x = 4,734.88 × 1,938.94
  4. Step 4: Simplify right side
    3,431.10x = 9,180,648.23
  5. Step 5: Solve for x
    x = 9,180,648.23/3,431.10
  6. Step 6: Final answer
    x = 2,675.72

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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.