Home / 2,125.46-3,190.01-1,578.71

Finding the Fourth Proportional to 2,125.46, 3,190.01 and 1,578.71

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Solution

The fourth proportional to 2,125.46, 3,190.01 and 1,578.71 is: 2,369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.46 : 3,190.01 = 1,578.71 : x
  2. Step 2: Convert to fraction form
    2,125.46/3,190.01 = 1,578.71/x
  3. Step 3: Cross multiply
    2,125.46x = 3,190.01 × 1,578.71
  4. Step 4: Simplify right side
    2,125.46x = 5,036,076.84
  5. Step 5: Solve for x
    x = 5,036,076.84/2,125.46
  6. Step 6: Final answer
    x = 2,369.41

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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.