Home / 3,835.20-5,752.80-1,645.50

Finding the Fourth Proportional to 3,835.20, 5,752.80 and 1,645.50

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Solution

The fourth proportional to 3,835.20, 5,752.80 and 1,645.50 is: 2,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.20 : 5,752.80 = 1,645.50 : x
  2. Step 2: Convert to fraction form
    3,835.20/5,752.80 = 1,645.50/x
  3. Step 3: Cross multiply
    3,835.20x = 5,752.80 × 1,645.50
  4. Step 4: Simplify right side
    3,835.20x = 9,466,232.40
  5. Step 5: Solve for x
    x = 9,466,232.40/3,835.20
  6. Step 6: Final answer
    x = 2,468.25

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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.