Home / 4,455.24-6,684.39-1,991.76

Finding the Fourth Proportional to 4,455.24, 6,684.39 and 1,991.76

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Solution

The fourth proportional to 4,455.24, 6,684.39 and 1,991.76 is: 2,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.24 : 6,684.39 = 1,991.76 : x
  2. Step 2: Convert to fraction form
    4,455.24/6,684.39 = 1,991.76/x
  3. Step 3: Cross multiply
    4,455.24x = 6,684.39 × 1,991.76
  4. Step 4: Simplify right side
    4,455.24x = 13,313,700.63
  5. Step 5: Solve for x
    x = 13,313,700.63/4,455.24
  6. Step 6: Final answer
    x = 2,988.32

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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.