Home / 3,417.21-5,129.60-2,447.64

Finding the Fourth Proportional to 3,417.21, 5,129.60 and 2,447.64

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Solution

The fourth proportional to 3,417.21, 5,129.60 and 2,447.64 is: 3,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.21 : 5,129.60 = 2,447.64 : x
  2. Step 2: Convert to fraction form
    3,417.21/5,129.60 = 2,447.64/x
  3. Step 3: Cross multiply
    3,417.21x = 5,129.60 × 2,447.64
  4. Step 4: Simplify right side
    3,417.21x = 12,555,401.91
  5. Step 5: Solve for x
    x = 12,555,401.91/3,417.21
  6. Step 6: Final answer
    x = 3,674.17

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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.