Home / 3,118.68-4,246.12-3,108.96

Finding the Fourth Proportional to 3,118.68, 4,246.12 and 3,108.96

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Solution

The fourth proportional to 3,118.68, 4,246.12 and 3,108.96 is: 4,232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,246.12 = 3,108.96 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,246.12 = 3,108.96/x
  3. Step 3: Cross multiply
    3,118.68x = 4,246.12 × 3,108.96
  4. Step 4: Simplify right side
    3,118.68x = 13,201,017.24
  5. Step 5: Solve for x
    x = 13,201,017.24/3,118.68
  6. Step 6: Final answer
    x = 4,232.89

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.