Home / 5,415.69-8,124.68-3,076.79

Finding the Fourth Proportional to 5,415.69, 8,124.68 and 3,076.79

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Solution

The fourth proportional to 5,415.69, 8,124.68 and 3,076.79 is: 4,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.69 : 8,124.68 = 3,076.79 : x
  2. Step 2: Convert to fraction form
    5,415.69/8,124.68 = 3,076.79/x
  3. Step 3: Cross multiply
    5,415.69x = 8,124.68 × 3,076.79
  4. Step 4: Simplify right side
    5,415.69x = 24,997,901.25
  5. Step 5: Solve for x
    x = 24,997,901.25/5,415.69
  6. Step 6: Final answer
    x = 4,615.83

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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.