Home / 2,010.12-3,011.72-1,571.20

Finding the Fourth Proportional to 2,010.12, 3,011.72 and 1,571.20

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Solution

The fourth proportional to 2,010.12, 3,011.72 and 1,571.20 is: 2,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.12 : 3,011.72 = 1,571.20 : x
  2. Step 2: Convert to fraction form
    2,010.12/3,011.72 = 1,571.20/x
  3. Step 3: Cross multiply
    2,010.12x = 3,011.72 × 1,571.20
  4. Step 4: Simplify right side
    2,010.12x = 4,731,999.08
  5. Step 5: Solve for x
    x = 4,731,999.08/2,010.12
  6. Step 6: Final answer
    x = 2,354.09

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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.