Home / 3,315.09-4,575.75-2,135.73

Finding the Fourth Proportional to 3,315.09, 4,575.75 and 2,135.73

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Solution

The fourth proportional to 3,315.09, 4,575.75 and 2,135.73 is: 2,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.09 : 4,575.75 = 2,135.73 : x
  2. Step 2: Convert to fraction form
    3,315.09/4,575.75 = 2,135.73/x
  3. Step 3: Cross multiply
    3,315.09x = 4,575.75 × 2,135.73
  4. Step 4: Simplify right side
    3,315.09x = 9,772,566.55
  5. Step 5: Solve for x
    x = 9,772,566.55/3,315.09
  6. Step 6: Final answer
    x = 2,947.90

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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.