Home / 3,098.10-4,647.15-2,790.90

Finding the Fourth Proportional to 3,098.10, 4,647.15 and 2,790.90

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Solution

The fourth proportional to 3,098.10, 4,647.15 and 2,790.90 is: 4,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.10 : 4,647.15 = 2,790.90 : x
  2. Step 2: Convert to fraction form
    3,098.10/4,647.15 = 2,790.90/x
  3. Step 3: Cross multiply
    3,098.10x = 4,647.15 × 2,790.90
  4. Step 4: Simplify right side
    3,098.10x = 12,969,730.94
  5. Step 5: Solve for x
    x = 12,969,730.94/3,098.10
  6. Step 6: Final answer
    x = 4,186.35

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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.