Home / 3,124.24-4,305.81-2,765.86

Finding the Fourth Proportional to 3,124.24, 4,305.81 and 2,765.86

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Solution

The fourth proportional to 3,124.24, 4,305.81 and 2,765.86 is: 3,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.24 : 4,305.81 = 2,765.86 : x
  2. Step 2: Convert to fraction form
    3,124.24/4,305.81 = 2,765.86/x
  3. Step 3: Cross multiply
    3,124.24x = 4,305.81 × 2,765.86
  4. Step 4: Simplify right side
    3,124.24x = 11,909,267.65
  5. Step 5: Solve for x
    x = 11,909,267.65/3,124.24
  6. Step 6: Final answer
    x = 3,811.89

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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.