Home / 2,998.85-4,140.34-1,937.09

Finding the Fourth Proportional to 2,998.85, 4,140.34 and 1,937.09

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Solution

The fourth proportional to 2,998.85, 4,140.34 and 1,937.09 is: 2,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.85 : 4,140.34 = 1,937.09 : x
  2. Step 2: Convert to fraction form
    2,998.85/4,140.34 = 1,937.09/x
  3. Step 3: Cross multiply
    2,998.85x = 4,140.34 × 1,937.09
  4. Step 4: Simplify right side
    2,998.85x = 8,020,201.53
  5. Step 5: Solve for x
    x = 8,020,201.53/2,998.85
  6. Step 6: Final answer
    x = 2,674.43

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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.