Home / 5,415.58-8,120.31-3,567.70

Finding the Fourth Proportional to 5,415.58, 8,120.31 and 3,567.70

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Solution

The fourth proportional to 5,415.58, 8,120.31 and 3,567.70 is: 5,349.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.58 : 8,120.31 = 3,567.70 : x
  2. Step 2: Convert to fraction form
    5,415.58/8,120.31 = 3,567.70/x
  3. Step 3: Cross multiply
    5,415.58x = 8,120.31 × 3,567.70
  4. Step 4: Simplify right side
    5,415.58x = 28,970,829.99
  5. Step 5: Solve for x
    x = 28,970,829.99/5,415.58
  6. Step 6: Final answer
    x = 5,349.53

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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.