Home / 3,432.40-5,147.76-2,401.60

Finding the Fourth Proportional to 3,432.40, 5,147.76 and 2,401.60

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Solution

The fourth proportional to 3,432.40, 5,147.76 and 2,401.60 is: 3,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.40 : 5,147.76 = 2,401.60 : x
  2. Step 2: Convert to fraction form
    3,432.40/5,147.76 = 2,401.60/x
  3. Step 3: Cross multiply
    3,432.40x = 5,147.76 × 2,401.60
  4. Step 4: Simplify right side
    3,432.40x = 12,362,860.42
  5. Step 5: Solve for x
    x = 12,362,860.42/3,432.40
  6. Step 6: Final answer
    x = 3,601.81

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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.