Home / 3,137.20-4,705.80-2,626.90

Finding the Fourth Proportional to 3,137.20, 4,705.80 and 2,626.90

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Solution

The fourth proportional to 3,137.20, 4,705.80 and 2,626.90 is: 3,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.20 : 4,705.80 = 2,626.90 : x
  2. Step 2: Convert to fraction form
    3,137.20/4,705.80 = 2,626.90/x
  3. Step 3: Cross multiply
    3,137.20x = 4,705.80 × 2,626.90
  4. Step 4: Simplify right side
    3,137.20x = 12,361,666.02
  5. Step 5: Solve for x
    x = 12,361,666.02/3,137.20
  6. Step 6: Final answer
    x = 3,940.35

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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.