Home / 2,113.90-3,170.85-1,627.90

Finding the Fourth Proportional to 2,113.90, 3,170.85 and 1,627.90

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Solution

The fourth proportional to 2,113.90, 3,170.85 and 1,627.90 is: 2,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.90 : 3,170.85 = 1,627.90 : x
  2. Step 2: Convert to fraction form
    2,113.90/3,170.85 = 1,627.90/x
  3. Step 3: Cross multiply
    2,113.90x = 3,170.85 × 1,627.90
  4. Step 4: Simplify right side
    2,113.90x = 5,161,826.72
  5. Step 5: Solve for x
    x = 5,161,826.72/2,113.90
  6. Step 6: Final answer
    x = 2,441.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.