Home / 3,415.20-5,125.20-1,468.80

Finding the Fourth Proportional to 3,415.20, 5,125.20 and 1,468.80

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Solution

The fourth proportional to 3,415.20, 5,125.20 and 1,468.80 is: 2,204.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.20 : 5,125.20 = 1,468.80 : x
  2. Step 2: Convert to fraction form
    3,415.20/5,125.20 = 1,468.80/x
  3. Step 3: Cross multiply
    3,415.20x = 5,125.20 × 1,468.80
  4. Step 4: Simplify right side
    3,415.20x = 7,527,893.76
  5. Step 5: Solve for x
    x = 7,527,893.76/3,415.20
  6. Step 6: Final answer
    x = 2,204.23

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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.