Home / 3,009.72-4,153.56-2,125.80

Finding the Fourth Proportional to 3,009.72, 4,153.56 and 2,125.80

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Solution

The fourth proportional to 3,009.72, 4,153.56 and 2,125.80 is: 2,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.72 : 4,153.56 = 2,125.80 : x
  2. Step 2: Convert to fraction form
    3,009.72/4,153.56 = 2,125.80/x
  3. Step 3: Cross multiply
    3,009.72x = 4,153.56 × 2,125.80
  4. Step 4: Simplify right side
    3,009.72x = 8,829,637.85
  5. Step 5: Solve for x
    x = 8,829,637.85/3,009.72
  6. Step 6: Final answer
    x = 2,933.71

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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.