Home / 3,020.76-4,187.96-2,913.84

Finding the Fourth Proportional to 3,020.76, 4,187.96 and 2,913.84

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Solution

The fourth proportional to 3,020.76, 4,187.96 and 2,913.84 is: 4,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.76 : 4,187.96 = 2,913.84 : x
  2. Step 2: Convert to fraction form
    3,020.76/4,187.96 = 2,913.84/x
  3. Step 3: Cross multiply
    3,020.76x = 4,187.96 × 2,913.84
  4. Step 4: Simplify right side
    3,020.76x = 12,203,045.37
  5. Step 5: Solve for x
    x = 12,203,045.37/3,020.76
  6. Step 6: Final answer
    x = 4,039.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.