Home / 4,311.50-6,465.89-2,858.36

Finding the Fourth Proportional to 4,311.50, 6,465.89 and 2,858.36

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Solution

The fourth proportional to 4,311.50, 6,465.89 and 2,858.36 is: 4,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.50 : 6,465.89 = 2,858.36 : x
  2. Step 2: Convert to fraction form
    4,311.50/6,465.89 = 2,858.36/x
  3. Step 3: Cross multiply
    4,311.50x = 6,465.89 × 2,858.36
  4. Step 4: Simplify right side
    4,311.50x = 18,481,816.16
  5. Step 5: Solve for x
    x = 18,481,816.16/4,311.50
  6. Step 6: Final answer
    x = 4,286.64

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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.