Home / 3,208.40-4,425.78-1,881.82

Finding the Fourth Proportional to 3,208.40, 4,425.78 and 1,881.82

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Solution

The fourth proportional to 3,208.40, 4,425.78 and 1,881.82 is: 2,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.40 : 4,425.78 = 1,881.82 : x
  2. Step 2: Convert to fraction form
    3,208.40/4,425.78 = 1,881.82/x
  3. Step 3: Cross multiply
    3,208.40x = 4,425.78 × 1,881.82
  4. Step 4: Simplify right side
    3,208.40x = 8,328,521.32
  5. Step 5: Solve for x
    x = 8,328,521.32/3,208.40
  6. Step 6: Final answer
    x = 2,595.85

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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.