Home / 3,212.71-4,434.98-1,886.49

Finding the Fourth Proportional to 3,212.71, 4,434.98 and 1,886.49

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Solution

The fourth proportional to 3,212.71, 4,434.98 and 1,886.49 is: 2,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.71 : 4,434.98 = 1,886.49 : x
  2. Step 2: Convert to fraction form
    3,212.71/4,434.98 = 1,886.49/x
  3. Step 3: Cross multiply
    3,212.71x = 4,434.98 × 1,886.49
  4. Step 4: Simplify right side
    3,212.71x = 8,366,535.99
  5. Step 5: Solve for x
    x = 8,366,535.99/3,212.71
  6. Step 6: Final answer
    x = 2,604.20

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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.