Home / 3,206.21-4,425.71-1,948.28

Finding the Fourth Proportional to 3,206.21, 4,425.71 and 1,948.28

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Solution

The fourth proportional to 3,206.21, 4,425.71 and 1,948.28 is: 2,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.21 : 4,425.71 = 1,948.28 : x
  2. Step 2: Convert to fraction form
    3,206.21/4,425.71 = 1,948.28/x
  3. Step 3: Cross multiply
    3,206.21x = 4,425.71 × 1,948.28
  4. Step 4: Simplify right side
    3,206.21x = 8,622,490.41
  5. Step 5: Solve for x
    x = 8,622,490.41/3,206.21
  6. Step 6: Final answer
    x = 2,689.31

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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.