Home / 3,990.15-5,977.04-2,342.75

Finding the Fourth Proportional to 3,990.15, 5,977.04 and 2,342.75

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Solution

The fourth proportional to 3,990.15, 5,977.04 and 2,342.75 is: 3,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.15 : 5,977.04 = 2,342.75 : x
  2. Step 2: Convert to fraction form
    3,990.15/5,977.04 = 2,342.75/x
  3. Step 3: Cross multiply
    3,990.15x = 5,977.04 × 2,342.75
  4. Step 4: Simplify right side
    3,990.15x = 14,002,668.86
  5. Step 5: Solve for x
    x = 14,002,668.86/3,990.15
  6. Step 6: Final answer
    x = 3,509.31

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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.