Home / 3,070.76-4,606.82-1,122.90

Finding the Fourth Proportional to 3,070.76, 4,606.82 and 1,122.90

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Solution

The fourth proportional to 3,070.76, 4,606.82 and 1,122.90 is: 1,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.76 : 4,606.82 = 1,122.90 : x
  2. Step 2: Convert to fraction form
    3,070.76/4,606.82 = 1,122.90/x
  3. Step 3: Cross multiply
    3,070.76x = 4,606.82 × 1,122.90
  4. Step 4: Simplify right side
    3,070.76x = 5,172,992.56
  5. Step 5: Solve for x
    x = 5,172,992.56/3,070.76
  6. Step 6: Final answer
    x = 1,684.60

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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.