Home / 3,013.92-4,155.84-2,892.96

Finding the Fourth Proportional to 3,013.92, 4,155.84 and 2,892.96

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Solution

The fourth proportional to 3,013.92, 4,155.84 and 2,892.96 is: 3,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.92 : 4,155.84 = 2,892.96 : x
  2. Step 2: Convert to fraction form
    3,013.92/4,155.84 = 2,892.96/x
  3. Step 3: Cross multiply
    3,013.92x = 4,155.84 × 2,892.96
  4. Step 4: Simplify right side
    3,013.92x = 12,022,678.89
  5. Step 5: Solve for x
    x = 12,022,678.89/3,013.92
  6. Step 6: Final answer
    x = 3,989.05

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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.