Home / 3,420.48-5,117.28-2,447.04

Finding the Fourth Proportional to 3,420.48, 5,117.28 and 2,447.04

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Solution

The fourth proportional to 3,420.48, 5,117.28 and 2,447.04 is: 3,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.48 : 5,117.28 = 2,447.04 : x
  2. Step 2: Convert to fraction form
    3,420.48/5,117.28 = 2,447.04/x
  3. Step 3: Cross multiply
    3,420.48x = 5,117.28 × 2,447.04
  4. Step 4: Simplify right side
    3,420.48x = 12,522,188.85
  5. Step 5: Solve for x
    x = 12,522,188.85/3,420.48
  6. Step 6: Final answer
    x = 3,660.94

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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.