Home / 4,323.92-5,967.78-3,390.80

Finding the Fourth Proportional to 4,323.92, 5,967.78 and 3,390.80

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Solution

The fourth proportional to 4,323.92, 5,967.78 and 3,390.80 is: 4,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,323.92 : 5,967.78 = 3,390.80 : x
  2. Step 2: Convert to fraction form
    4,323.92/5,967.78 = 3,390.80/x
  3. Step 3: Cross multiply
    4,323.92x = 5,967.78 × 3,390.80
  4. Step 4: Simplify right side
    4,323.92x = 20,235,548.42
  5. Step 5: Solve for x
    x = 20,235,548.42/4,323.92
  6. Step 6: Final answer
    x = 4,679.91

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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.