Home / 3,309.12-4,963.10-1,228.64

Finding the Fourth Proportional to 3,309.12, 4,963.10 and 1,228.64

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Solution

The fourth proportional to 3,309.12, 4,963.10 and 1,228.64 is: 1,842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.12 : 4,963.10 = 1,228.64 : x
  2. Step 2: Convert to fraction form
    3,309.12/4,963.10 = 1,228.64/x
  3. Step 3: Cross multiply
    3,309.12x = 4,963.10 × 1,228.64
  4. Step 4: Simplify right side
    3,309.12x = 6,097,832.23
  5. Step 5: Solve for x
    x = 6,097,832.23/3,309.12
  6. Step 6: Final answer
    x = 1,842.74

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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.