Home / 4,289.27-6,417.39-3,978.23

Finding the Fourth Proportional to 4,289.27, 6,417.39 and 3,978.23

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Solution

The fourth proportional to 4,289.27, 6,417.39 and 3,978.23 is: 5,952.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.27 : 6,417.39 = 3,978.23 : x
  2. Step 2: Convert to fraction form
    4,289.27/6,417.39 = 3,978.23/x
  3. Step 3: Cross multiply
    4,289.27x = 6,417.39 × 3,978.23
  4. Step 4: Simplify right side
    4,289.27x = 25,529,853.42
  5. Step 5: Solve for x
    x = 25,529,853.42/4,289.27
  6. Step 6: Final answer
    x = 5,952.03

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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.