Home / 2,998.58-4,139.20-2,006.74

Finding the Fourth Proportional to 2,998.58, 4,139.20 and 2,006.74

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Solution

The fourth proportional to 2,998.58, 4,139.20 and 2,006.74 is: 2,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.58 : 4,139.20 = 2,006.74 : x
  2. Step 2: Convert to fraction form
    2,998.58/4,139.20 = 2,006.74/x
  3. Step 3: Cross multiply
    2,998.58x = 4,139.20 × 2,006.74
  4. Step 4: Simplify right side
    2,998.58x = 8,306,305.10
  5. Step 5: Solve for x
    x = 8,306,305.10/2,998.58
  6. Step 6: Final answer
    x = 2,770.08

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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.