Home / 3,070.80-4,240.62-2,511.90

Finding the Fourth Proportional to 3,070.80, 4,240.62 and 2,511.90

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Solution

The fourth proportional to 3,070.80, 4,240.62 and 2,511.90 is: 3,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.80 : 4,240.62 = 2,511.90 : x
  2. Step 2: Convert to fraction form
    3,070.80/4,240.62 = 2,511.90/x
  3. Step 3: Cross multiply
    3,070.80x = 4,240.62 × 2,511.90
  4. Step 4: Simplify right side
    3,070.80x = 10,652,013.38
  5. Step 5: Solve for x
    x = 10,652,013.38/3,070.80
  6. Step 6: Final answer
    x = 3,468.81

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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.