Home / 3,118.10-4,674.39-1,270.76

Finding the Fourth Proportional to 3,118.10, 4,674.39 and 1,270.76

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Solution

The fourth proportional to 3,118.10, 4,674.39 and 1,270.76 is: 1,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.10 : 4,674.39 = 1,270.76 : x
  2. Step 2: Convert to fraction form
    3,118.10/4,674.39 = 1,270.76/x
  3. Step 3: Cross multiply
    3,118.10x = 4,674.39 × 1,270.76
  4. Step 4: Simplify right side
    3,118.10x = 5,940,006.85
  5. Step 5: Solve for x
    x = 5,940,006.85/3,118.10
  6. Step 6: Final answer
    x = 1,905.01

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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.