Home / 3,215.88-4,814.64-2,908.32

Finding the Fourth Proportional to 3,215.88, 4,814.64 and 2,908.32

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Solution

The fourth proportional to 3,215.88, 4,814.64 and 2,908.32 is: 4,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.88 : 4,814.64 = 2,908.32 : x
  2. Step 2: Convert to fraction form
    3,215.88/4,814.64 = 2,908.32/x
  3. Step 3: Cross multiply
    3,215.88x = 4,814.64 × 2,908.32
  4. Step 4: Simplify right side
    3,215.88x = 14,002,513.80
  5. Step 5: Solve for x
    x = 14,002,513.80/3,215.88
  6. Step 6: Final answer
    x = 4,354.18

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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.