Home / 4,214.80-5,815.56-3,218.32

Finding the Fourth Proportional to 4,214.80, 5,815.56 and 3,218.32

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Solution

The fourth proportional to 4,214.80, 5,815.56 and 3,218.32 is: 4,440.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.80 : 5,815.56 = 3,218.32 : x
  2. Step 2: Convert to fraction form
    4,214.80/5,815.56 = 3,218.32/x
  3. Step 3: Cross multiply
    4,214.80x = 5,815.56 × 3,218.32
  4. Step 4: Simplify right side
    4,214.80x = 18,716,333.06
  5. Step 5: Solve for x
    x = 18,716,333.06/4,214.80
  6. Step 6: Final answer
    x = 4,440.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.