Home / 2,381.05-3,571.58-1,285.93

Finding the Fourth Proportional to 2,381.05, 3,571.58 and 1,285.93

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Solution

The fourth proportional to 2,381.05, 3,571.58 and 1,285.93 is: 1,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.05 : 3,571.58 = 1,285.93 : x
  2. Step 2: Convert to fraction form
    2,381.05/3,571.58 = 1,285.93/x
  3. Step 3: Cross multiply
    2,381.05x = 3,571.58 × 1,285.93
  4. Step 4: Simplify right side
    2,381.05x = 4,592,801.87
  5. Step 5: Solve for x
    x = 4,592,801.87/2,381.05
  6. Step 6: Final answer
    x = 1,928.90

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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.