Home / 5,455.32-7,528.64-3,218.51

Finding the Fourth Proportional to 5,455.32, 7,528.64 and 3,218.51

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Solution

The fourth proportional to 5,455.32, 7,528.64 and 3,218.51 is: 4,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.32 : 7,528.64 = 3,218.51 : x
  2. Step 2: Convert to fraction form
    5,455.32/7,528.64 = 3,218.51/x
  3. Step 3: Cross multiply
    5,455.32x = 7,528.64 × 3,218.51
  4. Step 4: Simplify right side
    5,455.32x = 24,230,949.39
  5. Step 5: Solve for x
    x = 24,230,949.39/5,455.32
  6. Step 6: Final answer
    x = 4,441.71

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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.