Home / 5,070.20-7,601.90-2,107.86

Finding the Fourth Proportional to 5,070.20, 7,601.90 and 2,107.86

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Solution

The fourth proportional to 5,070.20, 7,601.90 and 2,107.86 is: 3,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.20 : 7,601.90 = 2,107.86 : x
  2. Step 2: Convert to fraction form
    5,070.20/7,601.90 = 2,107.86/x
  3. Step 3: Cross multiply
    5,070.20x = 7,601.90 × 2,107.86
  4. Step 4: Simplify right side
    5,070.20x = 16,023,730.39
  5. Step 5: Solve for x
    x = 16,023,730.39/5,070.20
  6. Step 6: Final answer
    x = 3,160.38

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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.