Home / 3,150.30-4,342.50-2,100.54

Finding the Fourth Proportional to 3,150.30, 4,342.50 and 2,100.54

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Solution

The fourth proportional to 3,150.30, 4,342.50 and 2,100.54 is: 2,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.30 : 4,342.50 = 2,100.54 : x
  2. Step 2: Convert to fraction form
    3,150.30/4,342.50 = 2,100.54/x
  3. Step 3: Cross multiply
    3,150.30x = 4,342.50 × 2,100.54
  4. Step 4: Simplify right side
    3,150.30x = 9,121,594.95
  5. Step 5: Solve for x
    x = 9,121,594.95/3,150.30
  6. Step 6: Final answer
    x = 2,895.47

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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.