Home / 3,630.48-5,432.64-3,145.20

Finding the Fourth Proportional to 3,630.48, 5,432.64 and 3,145.20

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Solution

The fourth proportional to 3,630.48, 5,432.64 and 3,145.20 is: 4,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.48 : 5,432.64 = 3,145.20 : x
  2. Step 2: Convert to fraction form
    3,630.48/5,432.64 = 3,145.20/x
  3. Step 3: Cross multiply
    3,630.48x = 5,432.64 × 3,145.20
  4. Step 4: Simplify right side
    3,630.48x = 17,086,739.33
  5. Step 5: Solve for x
    x = 17,086,739.33/3,630.48
  6. Step 6: Final answer
    x = 4,706.47

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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.