Home / 4,628.21-6,387.08-2,639.39

Finding the Fourth Proportional to 4,628.21, 6,387.08 and 2,639.39

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Solution

The fourth proportional to 4,628.21, 6,387.08 and 2,639.39 is: 3,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,628.21 : 6,387.08 = 2,639.39 : x
  2. Step 2: Convert to fraction form
    4,628.21/6,387.08 = 2,639.39/x
  3. Step 3: Cross multiply
    4,628.21x = 6,387.08 × 2,639.39
  4. Step 4: Simplify right side
    4,628.21x = 16,857,949.95
  5. Step 5: Solve for x
    x = 16,857,949.95/4,628.21
  6. Step 6: Final answer
    x = 3,642.44

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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.