Home / 3,539.90-4,885.92-2,195.91

Finding the Fourth Proportional to 3,539.90, 4,885.92 and 2,195.91

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Solution

The fourth proportional to 3,539.90, 4,885.92 and 2,195.91 is: 3,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.90 : 4,885.92 = 2,195.91 : x
  2. Step 2: Convert to fraction form
    3,539.90/4,885.92 = 2,195.91/x
  3. Step 3: Cross multiply
    3,539.90x = 4,885.92 × 2,195.91
  4. Step 4: Simplify right side
    3,539.90x = 10,729,040.59
  5. Step 5: Solve for x
    x = 10,729,040.59/3,539.90
  6. Step 6: Final answer
    x = 3,030.89

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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.