Home / 3,208.10-4,427.49-1,948.88

Finding the Fourth Proportional to 3,208.10, 4,427.49 and 1,948.88

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Solution

The fourth proportional to 3,208.10, 4,427.49 and 1,948.88 is: 2,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.10 : 4,427.49 = 1,948.88 : x
  2. Step 2: Convert to fraction form
    3,208.10/4,427.49 = 1,948.88/x
  3. Step 3: Cross multiply
    3,208.10x = 4,427.49 × 1,948.88
  4. Step 4: Simplify right side
    3,208.10x = 8,628,646.71
  5. Step 5: Solve for x
    x = 8,628,646.71/3,208.10
  6. Step 6: Final answer
    x = 2,689.64

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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.