Home / 3,105.18-4,286.28-2,359.08

Finding the Fourth Proportional to 3,105.18, 4,286.28 and 2,359.08

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Solution

The fourth proportional to 3,105.18, 4,286.28 and 2,359.08 is: 3,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.18 : 4,286.28 = 2,359.08 : x
  2. Step 2: Convert to fraction form
    3,105.18/4,286.28 = 2,359.08/x
  3. Step 3: Cross multiply
    3,105.18x = 4,286.28 × 2,359.08
  4. Step 4: Simplify right side
    3,105.18x = 10,111,677.42
  5. Step 5: Solve for x
    x = 10,111,677.42/3,105.18
  6. Step 6: Final answer
    x = 3,256.39

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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.