Home / 3,548.70-5,323.05-2,139.30

Finding the Fourth Proportional to 3,548.70, 5,323.05 and 2,139.30

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Solution

The fourth proportional to 3,548.70, 5,323.05 and 2,139.30 is: 3,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.70 : 5,323.05 = 2,139.30 : x
  2. Step 2: Convert to fraction form
    3,548.70/5,323.05 = 2,139.30/x
  3. Step 3: Cross multiply
    3,548.70x = 5,323.05 × 2,139.30
  4. Step 4: Simplify right side
    3,548.70x = 11,387,600.87
  5. Step 5: Solve for x
    x = 11,387,600.87/3,548.70
  6. Step 6: Final answer
    x = 3,208.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.